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Input: Packets : 0 Bytes : 0 Unicasts : 0 Multicasts : 0 Broadcasts : 0 CRC-ERROR : 0 Dropped : 0 F

2023-08-01 08:30:56
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瑞瑞爱吃桃

4627054 packets input, 2169581547 bytes, 0 no buffer

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broadcasts是什么意思

广播节目;广播;播音
2023-08-01 04:10:445

android有序广播和无序广播的区别

同一优先级的广播接收器,动态的要比静态注册的早。动态注册:即由代码注册的广播接收器静态注册:即在 AndroidManifest.xml 中注册的广播接收器 优先级: 当广播为有序发送的时候,要按这个排序并顺序发送。 sendBroadcast 发送的是无序广播。sendOrderedBroadcast 发送的是有序广播。 好了,现在寻找问题原因,在找原因前肯定有这样的想法,一个有序队列,既然允许有相同的优先级存在,那么在同优先级内要不然有排序子因素,要不基就是按照某种操作可能影响顺序。后者可能性很大。 打开源码,顺着 动态注册广播接受器 找,最后是 ActivityManagerService.java 这个文件找到了 registerReceiver 的实现。同地也看到,存储的广播接收器列表是 HashMap mRegisteredReceivers 这个变理。 里面有一段代码为: ReceiverList rl = (ReceiverList)mRegisteredReceivers.get(receiver.asBinder()); if (rl == null) { rl = new ReceiverList(this, callerApp, Binder.getCallingPid(), Binder.getCallingUid(), receiver); if (rl.app != null) { rl.app.receivers.add(rl); } else { try { receiver.asBinder().linkToDeath(rl, 0); } catch (RemoteException e) { return sticky; } rl.linkedToDeath = true; } mRegisteredReceivers.put(receiver.asBinder(), rl); } 在里面查找有没有这个 Receiver , 如果没有 put 进去。 看到这里貌似没有对广播的顺序做处理。是不是有别的地方做排序呢,找找成员变理,发现一个可疑的变量:final ArrayList mOrderedBroadcasts没错,感觉就应该是它了。 找找对它的操作,只有一处 mOrderedBroadcasts.set ,把代码摘录一下: BroadcastRecord r = new BroadcastRecord(intent, callerApp,callerPackage, callingPid, callingUid, requiredPermission,sticky, false); mOrderedBroadcasts.set(i, r);在这里放入了一个 BroadcastRecord 对像,而这个对像中主要的东西其实是 receivers向上跟踪 int NT = receivers != null ? receivers.size() : 0; int it = 0; ResolveInfo curt = null; BroadcastFilter curr = null; while (it < NT && ir < NR) { if (curt == null) { curt = (ResolveInfo)receivers.get(it); } if (curr == null) { curr = registeredReceivers.get(ir); } if (curr.getPriority() >= curt.priority) { // Insert this broadcast record into the final list. receivers.add(it, curr); ir++; curr = null; it++; NT++; } else { // Skip to the next ResolveInfo in the final list. it++; curt = null; } } 发现了一段 对 receivers 排序的代码,并且判断也是 priority 的值,用的是 >= 方式 感觉的找到了地方,但是对 Activity Manager Service 这个模块却更加的不懂了,以后有机会一定要分析一下这块是怎样设计的,才能确定本文的问题所在。暂时记录,以后分析!
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请问正在直播用英文怎么说

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2023-08-01 04:11:275

在交换机中查看端口速率的命令是什么 华为的交换机

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2023-08-01 04:11:523

CCNA题库中的一道题,求高手,求详解,求大腿啊......

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广播风暴有什么危害.产生广播风的具体原因是什么?

广播风暴是企业局域网内,经常发生的问题之一,也比较难以排除,故我们需要对它进行预防排除。   广播风暴指过多的广播包消耗了大量的网络带宽,导致正常的数据包无法正常在网络中传送,通常指一个广播包引起了多个的响应,而每个响应又引起了多个得响应,就像滚雪球一样,把网络的所有带宽都消耗殆尽。该现象通常是由于网络环路、故障网卡、病毒等引起的。   一、 广播风暴:提前预防(以CISCO catalyst switch为例)   1、首先使用网管分析你网络的baseline,这样可以明确你的网络当中正常情况下的广播包比例是多少。   2、目前绝大多数交换机都支持广播风暴抑制特性,配置了这个特性以后,你可以控制每个端口的广播包维持在特定的比例之下,这样可以保留带宽给必须的应用。   配置:(以CISCO catalyst switch为例)   Int XX   storm-control broadcast level 20.00   switch#sh storm   Interface Filter State Level Current     Fa1/0/1 Forwarding 20.00% 0.00%   3、针对缺省STP配置无法排除的网络环路问题,利用STP的BPDUguard特性来预防广播风暴。此种 Switch启用了STP,而hub则被人有意无意的用一根网线联起来,导致引起了环路。SWITCH的端口不会收到其他交换机或本交换机其他端口的BPDU,不会引起该端口的STP决策过程,也就不可能blocking该端口,这样就会引起广播风暴。我们可以利用CISCO STP的BPDUguard特性来预防这一点。   int xxx   spanning-tree bpduguard enable   **值得注意的是bpduguard可以在全局下配置,也可以在每端口的基础上配置。如果在全局下配置,则只对配置了portfast的端口起作用,如果在端口下配置,则不用配置portfast 二、 广播风暴排障大法(以CISCO catalyst switch为例)   如果网络中已经产生了网络风暴(现象通常为网络丢包、响应迟缓、时断时通等),则可以利用如下的方法来排障:   1、 首先确认是否是网络风暴或其他异常流量引起的网络异常,在核心交换机上   Switch>sh proc cpu | e 0.00   CPU utilization for five seconds: 19%/0%; one minute: 19%; five minutes: 19%   PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process   15 20170516 76615501 263 0.31% 0.13% 0.12% 0 ARP Input   26 7383266801839439482 401 5.03% 4.70% 5.08% 0 Cat4k Mgmt HiPri   27 8870781921122570949 790 5.67% 7.50% 6.81% 0 Cat4k Mgmt LoPri   43 730060152 341404109 2138 6.15% 5.29% 5.28% 0 Spanning Tree   50 59141788 401057972 147 0.47% 0.37% 0.39% 0 IP Input   56 2832760 3795155 746 0.07% 0.03% 0.01% 0 Adj Manager   58 4525900 28130423 160 0.31% 0.25% 0.18% 0 CEF process   96 20789148 344043382 60 0.23% 0.09% 0.08% 0 Standby (HSRP)   如果交换机的CPU利用率较高,且大部分的资源都被“IP Input”进程占用,则基本可以确定网络中有大流量的数据   2、 查找异常流量是从交换机的那一个端口来的:   switch #sh int | i protocol|rate|broadcasts   FastEthernet1/0/1 is up, line protocol is up (connected)   Queueing strategy: fifo   5 minute input rate 0 bits/sec, 0 packets/sec   5 minute output rate 2000 bits/sec, 3 packets/sec   Received 241676 broadcasts (0 multicast)   如果找到一个端口的input rate非常高,且接收到的广播包也非常多,则基本可以找到来源,如果该端口下联的也是可管理的交换机,则再次执行此过程,直到找到一个连接PC或者HUB的端口   3、 shutdown该端口   int xx   shutdown   4、 查找产生异常流量的根源   如果是HUB环路,则拆掉环;如果是病毒,则做杀毒处理;如果是网卡异常,则更换网卡。此部分不详述。   5、 确认交换机的CEF功能是否启用,如果没有,则需要启用,可以加速流量的转发   switch>sh ip cef   配置CEF:   全局模式下输入   ip cef
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41.The weatherman broadcasts the in temperature twice a day.

41-A, 42-A, 43-B,44-A,45-C,46-A,47-B,48-B,49-A,50-A.
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the broadcasts will be heard in most parts of the world

in most parts of the world 是地点状语,修饰谓语动词will be heard 是谓语
2023-08-01 04:12:513

near video on demand中文翻译

Ob near video on demand 准视频点播 Dvn has so far installed over 20 digital broadcasting systems in more than 10 municipapties and provinces to enable the rollout of a range of channel rebroadcasts , near video on demand , onpne information , interactive advertising and tv - merce services 集团已在中国十多个省市建立了二十多个数码广播系统,以低廉的成本向电视观众提供视频点播网上讯息互动广告电视商务等一系列的数码电视增值服务。 Dvn has so far installed over 20 digital broadcasting systems in more than 10 municipapties and provinces to enable the rollout of a range of channel rebroadcasts , near video on demand , onpne information , interactive advertising and tv - merce services 集团已在中国十多个省市建立了二十多个数码广播系统,以低廉的成本向电视观众提供视频点播、网上讯息、互动广告、电视商务等一系列的数码电视增值服务。 A range of digital tv services are provided at affordable costs which include channel rebroadcasts , near video on demand , on - pne information , interactive advertising , t - merce etc . in 2004 , dvn s set top box won awards within china for its quapty and popularity 集团已在中国十多个省市建立了二十多个数码广播系统,以低廉的成本向电视观众提供视频点播网上讯息互动广告电视商务等一系列数码电视增值服务。 A range of digital tv services are provided at affordable costs which include channel rebroadcasts , near video on demand , on - pne information , interactive advertising , t - merce etc . in 2004 , dvn s set top box won awards within china for its quapty and popularity 集团已在中国十多个省市建立了二十多个数码广播系统,以低廉的成本向电视观众提供视频点播、网上讯息、互动广告、电视商务等一系列数码电视增值服务。 A range of value added services are currently being provided by dvn on digital tv platform at affordable cost for channel rebroadcasts , near video on demand , on - pne information , interactive advertising , tv - merce etc . based on the prc s nationwide survey report " economic research *** ysis of digital set top box technology for cable tv operators " conducted by the academy of broadcasting science , sarft of china in 2002 , the dvn s brand set top boxes ranked the highest in the adoption rate amongst the tv operators in china 集团已在中国十多个省市建立了二十多个数码广播系统,以低廉的成本向电视观众提供视频点播、网上讯息、互动广告、电视商务等一系列的数码电视增值服务。根据中国广播科学研究院二零零二年的《有线数字电视机顶盒技术经济分析研究报告》 ,天地数码的柏视通机顶盒为各地运营商选用率最高的终端产品品牌。 A range of value added services are currently being provided by dvn on digital tv platform at affordable cost for channel rebroadcasts , near video on demand , on - pne information , interactive advertising , tv - merce etc . based on the prc s nationwide survey report " economic research *** ysis of digital set top box technology for cable tv operators " conducted by the academy of broadcasting science , sarft of china in 2002 , the dvn s brand set top boxes ranked the highest in the adoption rate amongst the tv operators in china 集团已在中国十多个省市建立了二十多个数码广播系统,以低廉的成本向电视观众提供视频点播网上讯息互动广告电视商务等一系列的数码电视增值服务。根据中国广播科学研究院二零零二年的有线数字电视机顶盒技术经济分析研究报告,天地数码的柏视通机顶盒为各地运营商选用率最高的终端产品品牌。
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when listending to broadcasts from the speaker翻译

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android有序广播和无序广播的区别

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电脑注册表的ForwardBroadcasts原始值

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VOA broadcasts programs in English and 40( )languages all over the world.

c
2023-08-01 04:13:502

Was it not until 1920_regular radio broadcasts began?

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cisco2950 交换机 端口问题

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It was 1920 ______ regular radio broadcasts bega

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2023-08-01 04:14:331

请帮忙翻译下~~最好快一点 在周日之前~

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2023-08-01 04:14:414

关于dis interface 是什么意思

display interface命令用来显示端口的配置信息。在显示端口信息时:l 如果不指定端口类型和端口号,则显示交换机上所有的端口信息;l 如果仅指定端口类型,则显示该类型端口的所有端口信息;如果同时指定端口类型和端口号,则显示指定的端口信息。display interface命令显示信息描述表字段描述Ethernet1/0/1 current state以太网端口的当前状态,可以为UP、DOWN或ADMINISTRATIVELY DOWNIP Sending Frames" Format以太网帧格式Hardware address端口硬件地址Media type介质类型Port hardware type端口硬件类型100Mbps-speed mode, full-duplex mode当前的速率和双工模式Link speed type is force link, link duplex type is force link连接速率和双工的状态(强制状态或自动协商状态)Flow-control is enabled端口流控功能的状态The Maximum Frame Length端口允许通过的最大以太网帧长度Broadcast MAX-ratio端口广播风暴抑制比Unicast MAX-ratio端口未知单播风暴抑制比Multicast MAX-ratio端口组播风暴抑制比Allow jumbo frame to pass端口允许长帧通过PVID端口缺省VLAN IDMdi type网线类型Port link-type端口链路类型Tagged VLAN ID标识该端口在转发哪些VLAN的报文时需要保留Tag标记Untagged VLAN ID标识该端口在转发哪些VLAN的报文时不需要保留Tag标记Last 300 seconds input: 0 packets/sec 0 bytes/secLast 300 seconds output: 0 packets/sec 0 bytes/sec端口在最近300秒接收和转发报文的平均速率,单位分别为数据包/秒和字节/秒Input(total): 0 packets, 0 bytes 0 broadcasts, 0 multicasts, 0 pauses端口接收报文的统计值,包括正常报文、异常报文和正常PAUSE帧的报文数、字节数端口接收的广播报文、组播报文和PAUSE帧的数量Input(normal): - packets, - bytes - broadcasts, - multicasts, - pauses端口接收的正常报文的统计值,包括正常报文和正常PAUSE帧的报文数、字节数端口接收的正常广播报文、组播报文和PAUSE帧的数量其中“-”表示不支持该统计项input errors各种接收错误的总数runts接收到的超小帧的数量超小帧是指长度小于64字节、格式正确且包含有效的CRC字段的帧giants接收到的超大帧的数量超大帧是指有效长度大于1518字节(如果不带VLAN Tag)或大于1522字节(如果带VLAN Tag报文)的帧- throttles端口出现throttles的次数当缓存或CPU过载时,设备将端口关闭情况称为throttleCRC接收到的CRC校验错误、长度正常的帧的数量frame接收到的CRC校验错误、且长度不是整字节数的帧的数量- overruns当端口的接收速率超过接收队列的处理能力时,导致报文被丢弃aborts接收到的非法报文总数,非法报文包括:l 报文碎片:长度小于64字节(长度可以为整数或非整数)且CRC校验错误的帧l jabber帧:大于1518或1522字节,且CRC校验错误(报文字节可以为整数或非整数)l 符号错误帧:报文中至少包含1个错误的符号l 操作码未知帧:报文是MAC控制帧,但不是Pause帧l 长度错误帧:报文中802.3长度字段与报文实际长度(46~1500字节)不匹配ignored,由于端口接收缓冲区不足等原因而丢弃的报文数量- parity errors接收到的奇偶校验错误的帧的数量Output(total): 0 packets, 0 bytes 0 broadcasts, 0 multicasts, 0 pauses端口发送报文的统计值,包括正常报文、异常报文和正常PAUSE帧的报文数、字节数端口发送的广播报文、组播报文和PAUSE帧的数量Output(normal): - packets, - bytes - broadcasts, - multicasts, - pauses端口发送的正常报文的统计值,包括正常报文和正常PAUSE帧的报文数、字节数端口发送的正常广播报文、组播报文和PAUSE帧的数量其中“-”表示不支持该统计项output errors各种发送错误的报文总数- underruns当端口的发送速率超过了发送队列的处理能力,导致报文被丢弃,是一种非常少见的硬件异常- buffer failures由于端口发送缓冲区不足而丢弃的报文数量aborts发送失败的报文总数,即报文已经开始发送,但由于各种原因(如冲突)而导致发送失败deferred延迟报文的数量,延迟报文是指发送前检测到冲突而被延迟发送的报文collisions冲突帧的数量,冲突帧是指在发送过程中检测到冲突的而停止发送的报文late collisions延迟冲突帧的数量,延迟冲突帧是指帧的前512 bits已经被发送,由于检测到冲突,该帧被延迟发送lost carrier载波丢失,一般适用于串行WAN接口,发送过程中,每丢失一个载波,此计数器加一- no carrier无载波,一般适用于串行WAN接口,当试图发送帧时,如果没有载波出现,此计数器加一
2023-08-01 04:14:511

如何显示H3C交换机端口的速率

我觉得 装个软件比较方便
2023-08-01 04:15:174

H3C以太网口流量显示信息

Peak value of input: 45269309 bytes/sec, at 2009-10-11 21:24:50 Peak value of output: 31077246 bytes/sec, at 2009-10-11 21:24:50 Last 300 seconds input: 13335 packets/sec 13205162 bytes/sec 11% Last 300 seconds output: 11018 packets/sec 3995365 bytes/sec 3%
2023-08-01 04:15:261

android 优先级对无序广播生效?

同一优先级的广播接收器,动态的要比静态注册的早。动态注册:即由代码注册的广播接收器静态注册:即在 AndroidManifest.xml 中注册的广播接收器 优先级: 当广播为有序发送的时候,要按这个排序并顺序发送。 sendBroadcast 发送的是无序广播。sendOrderedBroadcast 发送的是有序广播。 好了,现在寻找问题原因,在找原因前肯定有这样的想法,一个有序队列,既然允许有相同的优先级存在,那么在同优先级内要不然有排序子因素,要不基就是按照某种操作可能影响顺序。后者可能性很大。 打开源码,顺着 动态注册广播接受器 找,最后是 ActivityManagerService.java 这个文件找到了 registerReceiver 的实现。同地也看到,存储的广播接收器列表是 HashMap mRegisteredReceivers 这个变理。 里面有一段代码为: ReceiverList rl = (ReceiverList)mRegisteredReceivers.get(receiver.asBinder()); if (rl == null) { rl = new ReceiverList(this, callerApp, Binder.getCallingPid(), Binder.getCallingUid(), receiver); if (rl.app != null) { rl.app.receivers.add(rl); } else { try { receiver.asBinder().linkToDeath(rl, 0); } catch (RemoteException e) { return sticky; } rl.linkedToDeath = true; } mRegisteredReceivers.put(receiver.asBinder(), rl); } 在里面查找有没有这个 Receiver , 如果没有 put 进去。 看到这里貌似没有对广播的顺序做处理。是不是有别的地方做排序呢,找找成员变理,发现一个可疑的变量:final ArrayList mOrderedBroadcasts没错,感觉就应该是它了。 找找对它的操作,只有一处 mOrderedBroadcasts.set ,把代码摘录一下: BroadcastRecord r = new BroadcastRecord(intent, callerApp,callerPackage, callingPid, callingUid, requiredPermission,sticky, false); mOrderedBroadcasts.set(i, r);在这里放入了一个 BroadcastRecord 对像,而这个对像中主要的东西其实是 receivers向上跟踪 int NT = receivers != null ? receivers.size() : 0; int it = 0; ResolveInfo curt = null; BroadcastFilter curr = null; while (it < NT && ir < NR) { if (curt == null) { curt = (ResolveInfo)receivers.get(it); } if (curr == null) { curr = registeredReceivers.get(ir); } if (curr.getPriority() >= curt.priority) { // Insert this broadcast record into the final list. receivers.add(it, curr); ir++; curr = null; it++; NT++; } else { // Skip to the next ResolveInfo in the final list. it++; curt = null; } } 发现了一段 对 receivers 排序的代码,并且判断也是 priority 的值,用的是 >= 方式 感觉的找到了地方,但是对 Activity Manager Service 这个模块却更加的不懂了,以后有机会一定要分析一下这块是怎样设计的,才能确定本文的问题所在。暂时记录,以后分析!
2023-08-01 04:15:361

android 广播超时怎么避免actiivtythread finishing failed broadcast to data,in

final void processNextBroadcast(boolean fromMsg) { ............ do { if (mOrderedBroadcasts.size() == 0) { .............. return; } r = mOrderedBroadcasts.get(0); boolean forceReceive = false; int numReceivers = (r.receivers != null) ? r.receivers.size() : 0; if (mService.mProcessesReady && r.dispatchTime > 0) { long now = SystemClock.uptimeMillis(); if ((numReceivers > 0) && (now > r.dispatchTime + (2*mTimeoutPeriod*numReceivers))) { Slog.w(TAG, "Hung broadcast [" + mQueueName + "] discarded after timeout failure:" + " now=" + now + " dispatchTime=" + r.dispatchTime + " startTime=" + r.receiverTime + " intent=" + r.intent + " numReceivers=" + numReceivers + " nextReceiver=" + r.nextReceiver + " state=" + r.state); //设置系统处理广播的总时长,与接收器的个数有关 broadcastTimeoutLocked(false); // forcibly finish this broadcast forceReceive = true; r.state = BroadcastRecord.IDLE; } }
2023-08-01 04:15:551

"新闻联播"节目的英语怎么说?

News
2023-08-01 04:16:114

win7中regedit中ForwardBroadcasts数据是0吗

"ForwardBroadcasts"=dword:00000000
2023-08-01 04:16:181

大侠,我想问一下有关交换机的mac地址的问题。

那是模拟器的问题,下面是真时交换机的输出。还有问题可以hi我!Vlan1 is up, line protocol is down Hardware is EtherSVI, address is 0022.0dfc.7440 (bia 0022.0dfc.7440) MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive not supported ARP type: ARPA, ARP Timeout 04:00:00 Last input never, output never, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 0 packets input, 0 bytes, 0 no buffer Received 0 broadcasts (0 IP multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 packets output, 0 bytes, 0 underruns 0 output errors, 0 interface resets 0 output buffer failures, 0 output buffers swapped outVlan2 is up, line protocol is down Hardware is EtherSVI, address is 0022.0dfc.7441 (bia 0022.0dfc.7441) MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive not supported ARP type: ARPA, ARP Timeout 04:00:00 Last input never, output never, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 0 packets input, 0 bytes, 0 no buffer Received 0 broadcasts (0 IP multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 packets output, 0 bytes, 0 underruns 0 output errors, 0 interface resets 0 output buffer failures, 0 output buffers swapped outVlan30 is up, line protocol is down Hardware is EtherSVI, address is 0022.0dfc.7442 (bia 0022.0dfc.7442) MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive not supported ARP type: ARPA, ARP Timeout 04:00:00 Last input never, output never, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 0 packets input, 0 bytes, 0 no buffer Received 0 broadcasts (0 IP multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 packets output, 0 bytes, 0 underruns 0 output errors, 0 interface resets 0 output buffer failures, 0 output buffers swapped out
2023-08-01 04:16:261

act,broadcast,far,cartoon,distance,competition

1.actor2.far3.competition4.cartoon5.broadcasts6.distance
2023-08-01 04:16:331

以"不同的时代,不同的业余活动"为题写英语作文

broadcast the inspiration and the source material, in made broadcast in the day, I liked the rock and roll music, liked the network literature, after I liked finished class, is static sits before the computer, chooses music which a section was in a stew, looked for an article to inside the collection website, soaked cup of milks, heartily the appreciate music and the writing took to me joyful and the relaxation, therefore also liked code some writing putting slowly to mine individual main page. I thought that each people should not have a deficit oneself, therefore likes the hobby which regarding oneself broadcasts, I also planned that for oneself certain time, is been full oneself in this line of development, consummates itself diligently, enjoys itself to make the broadcast in the process happy feeling. After graduation, if has the possibility, I with every effort will also be able to participate in this line. Makes the broadcast is the profession which one kind pours water,补充:Goes to the flower-and-bird market to buy several trough bonsais frequently, gives itself, gives the colleague, chats with familiar flower-and-bird skilled worker, listens to them to speak some very interesting knowledge, every day spends several minutes to carry for the small trough waters, appreciates them freshly Paris green, is incomparably satisfied, is incomparably enjoyable. In addition, the spare time, I also like riding the public vehicle, I like investing one dollar the coin, sits on the vehicle, looked outside the glass flows the scenery, is static filters a oneself period of time own life, did not ponder, lets male tire me sit from this station to the next station, this sits to that head, in this process, nobody disturbance, enjoys own time heartily, because simultaneously side lively scene feels from the moral nature warm. My extra-curricular life is this, simple, but lets me relax, lets me enjoy, lets me enrich
2023-08-01 04:16:561

centos7.4内核调优,tcp单服务器万级并发

在使用linux的centos7.4遇到的各种坑,其中一个项目采用四层架构,配置层,平台层,逻辑服务器管理层和集体逻辑服务器层的,一个整体的 游戏 项目,其中,作为整个项目负责人和架构打架着,项目运行一年来,遇到了各种各样怪异的问题。其中就是tcp缓存区堵塞的问题,刚开始时候,以为是代码问题,花了半年的时间来排除,验证,把能想到的问题都做了一个遍,问题还是存在。最后应该几个调优和验证。附上算比较稳定centos7.4的内核调优详细参数如下: 内核配置文件:/etc/sysctl.conf net.ipv4.tcp_mem = 768432 2097152 15242880 net.ipv4.tcp_wmem = 40960 163840 4194304 net.ipv4.tcp_rmem = 40960 873800 4194304 #net.core.somaxconn=6553600 net.core.wmem_default = 8388608 net.core.rmem_default = 8388608 net.core.rmem_max = 524288000 net.core.wmem_max = 524288000 net.ipv4.tcp_syncookies=1 net.ipv4.tcp_max_syn_backlog=81920 net.ipv4.tcp_timestamps=0 # 参数的值决定了内核放弃链接之前发送SYN+ACK包的数量,该参数对应系统路径为:/proc/sys/net/ipv4/tcp_synack_retries,默认是2 net.ipv4.tcp_synack_retries=3 # 表示内核放弃建立链接之前发送SYN包的数量,该参数对应系统路径为:/proc/sys/net/ipv4/tcp_syn_retries,默认是6 net.ipv4.tcp_syn_retries=3 net.ipv4.tcp_fin_timeout = 30 net.ipv4.tcp_keepalive_time = 300 net.ipv4.ip_local_port_range = 20000 65000 net.ipv4.tcp_max_tw_buckets = 6000 net.ipv4.route.max_size = 5242880 kernel.sem=250 65536 100 2048 kernel.msgmnb = 4203520 kernel.msgmni = 64 kernel.msgmax = 65535 #设置最大内存共享段大小bytes kernel.shmmax = 68719476736 kernel.shmall = 4294967296 kernel.shmmni = 655360 net.ipv4.tcp_tw_reuse=1 net.ipv4.tcp_tw_recycle = 1 net.ipv4.tcp_window_scaling = 1 net.ipv4.tcp_no_metrics_save=1 # 开启SYN洪水攻击保护 kernel.core_uses_pid = 1 net.ipv4.conf.lo.arp_announce=2 net.ipv4.tcp_sack = 1 kernel.randomize_va_space=1 net.nf_conntrack_max = 25000000 net.netfilter.nf_conntrack_max = 25000000 net.netfilter.nf_conntrack_tcp_timeout_established = 180 #net.ipv4.netfilter.ip_conntrack_max=1000000 net.netfilter.nf_conntrack_tcp_timeout_time_wait = 120 net.netfilter.nf_conntrack_tcp_timeout_close_wait = 60 net.netfilter.nf_conntrack_tcp_timeout_fin_wait = 120 #避免放大攻击 net.ipv4.icmp_echo_ignore_broadcasts=1 #关闭ipv6 net.ipv6.conf.all.disable_ipv6 = 1 net.ipv6.conf.default.disable_ipv6 = 1 # 开启恶意icmp错误消息保护 net.ipv4.icmp_ignore_bogus_error_responses = 1 #关闭路由转发 net.ipv4.ip_forward = 0 net.ipv4.conf.all.send_redirects = 0 net.ipv4.conf.default.send_redirects = 0 #开启反向路径过滤 net.ipv4.conf.all.rp_filter = 1 net.ipv4.conf.default.rp_filter = 1 #处理无源路由的包 net.ipv4.conf.all.accept_source_route = 0 net.ipv4.conf.default.accept_source_route = 0 #关闭sysrq功能 kernel.sysrq = 0 #每个网络接口接收数据包的速率比内核处理这些包的速率快时,允许送到队列的数据包的最大数目 net.core.netdev_max_backlog = 262144 #限制仅仅是为了防止简单的DoS 攻击 net.ipv4.tcp_max_orphans = 3276800 # 确保无人能修改路由表 net.ipv4.conf.all.accept_redirects = 0 net.ipv4.conf.default.accept_redirects = 0 net.ipv4.conf.all.secure_redirects = 0 net.ipv4.conf.default.secure_redirects = 0 vm.swappiness = 0 #决定检查过期多久邻居条目 net.ipv4.neigh.default.gc_stale_time=120 fs.file-max = 40000500 fs.nr_open = 40000500 kernel.perf_cpu_time_max_percent=60 kernel.perf_event_max_sample_rate=6250 kernel.sched_migration_cost_ns=5000000 net.core.optmem_max= 25165824 vm.max_map_count=262144 net.core.somaxconn = 65535 #使用arp_announce / arp_ignore解决ARP映射问题 net.ipv4.conf.default.arp_announce = 2 net.ipv4.conf.all.arp_announce=2 net.ipv4.conf.lo.arp_announce=2
2023-08-01 04:17:161

雅思口语范文:描述一个你喜欢的电视节目

  下面是一篇描写TV program的雅思口语话题范文,这篇雅思口语范文的主要内容是描述一个你喜欢的电视节目。这是一个抽象类的口语话题,这样的话题要求考生在描述的时候尽可能的使答案显得生动而具体。下面我们来看看具体内容。   Describe your favorite TV program   My favorite TV program is called Cooking, which is broadcast on Channel Five every Sunday morning. The time it broadcasts is very convenient, coz after watching it, audiences have enough time to imitate the dish they have just learnt from the program, and itu2019s Sunday, people do not need to go to work.   Once, a course named well-done duck with bean sauce was broadcast. After watched it, I was really interested in it and decided to learn to cook the dish at supper. In order to show off my cooking skills, I tried my best to cook the well-done duck with bean sauce. I cut a bean curd into slices, which seemed as thin as humanu2019s hair. Then I used flour, eggs, sugar and other ingredients to make the bean sauce. After that, I fried a duck in shallow oil with the bean sauce. Finally, the course was achieved.   After my parents tasted it, they both gave praise to my cooking skills. They said, it looked inviting, smelt refreshing and tasted bitter first, sour later, then a litter salty, and a unique spiciness remained at last.   以上就是这篇雅思口语话题范文的全部内容,大家可以看到这篇雅思口语范文的重点也可以落在经历上,所以在回答和经历有关的话题的时候,大家也可以用这个材料。当然如果想要回答好这类的话题,另一个不可避免的就是要掌握一些关于厨房的词汇。
2023-08-01 04:17:221

短语动词

动词常和某些其他词类用在一起,构成固定词组,形成所谓短语动词 (phrasal verb) 。和动词一样,短语动词也可分为及物和不及物两种。短语动词可以作为一个整体看待,同一般动词一样使用。 1) 动词 + 介词 这类短语动词用作及物动词,后面须跟宾语。如: The small boy insisted on going with his parents. 那男孩坚持要跟父母一起去。 Do you often listen to broadcasts in English? 你常听英语广播吗 ? Look at the children. Aren"t they lovely? 看着这些孩子们。他们多么可爱呀 ! We stand for self-reliance. 我们是主张自力更生的。 这一类的短语动词还有很多,如 depend on (upon)( 依 *) , wait on ( 服侍 ) , look for ( 寻找 ) , deal with( 对待 ) , look after( 照料 ) , wait for( 等待 ) 等。 2) 动词 + 副词 这类短语动词有的用作及物动词,有的用作不及物动词。如: I always get up as soon as the bell rings. 我总是一打铃就起床。 ( 不及物 ) Look out , there"s a car coming! 当心,来汽车了 !( 不及物 ) Have you handed in your exercises already? 你已经交练习了吗 ?( 及物 ) Please don"t forget to put on your coat ; it"s cold outside. 请不要忘记穿外衣,外面很冷。 ( 及物 ) 这一类的短语动词还有很多,及物如 put out ( 扑灭 ) , eat up ( 吃光 ) , putdown( 放下 ) ;不及物如 set off ( 出发 ) , come up( 走近 ) , go on( 继续 ) 。 [ 注一 ] " 动词 + 副词 " 这类短语动词和上面第一类 " 动词 + 介词 " 的不同之处在于: " 动词 + 介词 " 用作及物动词,后面须跟宾语。 " 动词 + 副词 " 则有的及物,有的不及物;用作及物动词而宾语为人称代词或自身代词时,副词往往放在宾语之后。如: Please wake me up at five tomorrow. 请在明天早上五点唤醒我。 If you have done your exercises , please hand them in. 如果你们练习做完了请交来。 She doesn"t normally behave like that ; she"s putting it on. 她通常并不如此表现,她是装出来的。 [ 注二 ] 这类短语动词有不少可兼作及物和不及物动词用。如: He took off his hat when he entered the office. 他进办公室后脱下帽子。 ( 及物 ) The plane took off at seven sharp. 飞机在七点整起飞。 ( 不及物 ) Charlie rang up Neil to ask about the time of the meeting. 查理打电话给尼尔问开会的时间。 ( 及物 ) If you can"t come , please ring up and let us know. 你如来不了,请来电话告诉我们一声。 ( 不及物 ) 3) 动词 + 副词 + 介词 短语动词 " 动词 + 副词 " 之后有的可以再加一个介词,形成另一种短语动词。这类短语动词用作及物动词。如: Do not give up hope. We must go on with the experiment 不要失望。我们必须继续试验。 (go on with 继续 ) He came up to me. 他走到我跟前。 (come up to 走近 ) 这类短语动词还有: look down upon( 看不起 ) , do away with( 去掉 ) , put up with( 忍受 ) 等。 4) 动词 + 名词 + 介词 这类短语动词也是及物的。如 He shook hands with all the guests at the banquet. 他在宴会上和宾客一一握手。 Young pioneers often come to the Children"s Palace to take part in after=school activities. 少先队员经常到少年宫来参加课外活动。 Pay attention to the temperature of the stored rice. 注意仓库里的稻谷的温度。 Her job is taking care of the babies. 她的工作是照顾婴儿。 这一类短语动词还有: put an end to ( 结束 ) , take notice of ( 注意 ) , catch hold of ( 抓住 ) , lose sight of( 看不见 ) , make use of( 利用 ) 等 动词的基本形式( principal forms of the verb ) 1) 英语动词的四种基本形式 它们是动词原形( room form of the verb ),过去式 (past tense form) , 过去分词 ( past participle )和现在分词 (present participle) 。这四种形式和助动词一起构成动词的时态、语态和语气。 原形 过去式 过去分词 现在分词 work worked worked working write wrote written writing have had had having do did done doing 2) 动词原形 动词原形就是词典中一般给的动词的形式,如 be , have , do , work , study 等。 3) 动词过去式和过去分词的构成有规则的和不规则的两种。规则动词 (regular verb) 的过去式和过去分词,由在原形后面加词尾 -ed 构成。 [ 注 ] 少数双音节动词,尽管重音在第一个音节,仍双写末尾的辅音字母,然后再加 -ed 。如: 5travel - traveled 5level - 1evelled 5total - totaled 5model - modelled 但美国英语不双写辅音字母,如 travel-traveled 。 不规则动词 (irregular verb) 的过去式及过去分词的形式是不规则的。这些动词为数虽不多,但都是比较常用的,必须熟记。不规则动词表见本书附录一。 4) 动词的现在分词 由动词原形加词尾 -ing 构成。 其构成方法如下: a) 一般情况下,直接加 -ing : go-going 去 stand-standing 站立 ask - asking answer - answering 回答 study - studying 学习 be-being 是 see-seeing 看 [ 注一 ] 和名词复数、动词第三人称现在一般时加 -s(-es) 不同,动词末尾如为 " 辅音字母 + y" 时, y 不变,其后直接加 -ing 。如 studying [5stQdiiN] , fly - flying [5flaiiN] , carry-carrying [5kAriiN] 。 [ 注二 ] 动词结尾为辅音字母 r 时,加 -ing , r 在此必须发音。如: enter [5entE] - entering [5entEriN] 进入 answer [5B:nsE] - answering[5B:nsEriN] 回答 wear [wZE] - wearing [5wZeriN] 穿 b) 以不发音的 e 结尾的动词,去掉 e ,再加 -ing 。如: come-coming 来 write-writing 写 take - taking 拿 become-becoming 变成 c) 动词是闭音节的单音节词,或是以重读闭音节结尾的多音节词,而末尾只有一个辅音字母时,这个辅音字母须双写,然后再加 -ing 。如: Sit - sitting 坐 run-running 跑 Stop-stopping 停止 begin-beginning 开始 admit-admitting 承认 forget - forgetting 忘记 [ 注一 ] send , think , accept 等动词虽是闭音节或以重读闭音节结尾,但末尾有一个以上的辅音字母,因此,这个辅音字母不双写,应直接加 -ing 。如: sending , thinking , accepting 。 [ 注二 ] 少数双音节的动词,重音在第一音节,仍双写末尾的辅音字母,然后再加 -ing 。如: 5travel-traveling 5level-levelling 5total-totaling 5model-modelling 美国英语不双写辅音字母,如 travel - traveling 。 d) 少数几个以 -ie 止结尾的动词,须将 ie 变作 y ,再加 ing 。如: die-dying 死, tie-tying 捆,缚,系 lie-lying 躺,说谎 [ 注 ] 少数以 -c 结尾的动词变为过去式和现在分词时,须先将 -c 变为 ck, 然后再加 -ed 或 -ing 。如: picnic picnicked picnicking traffic trafficked trafficking [ 英语语法手册 ] 一般时态 现在一般时的基本用法 l) 表示现在存在的习惯,经常发生的动作或存在的状态。常与 every day , twice a week( 每周二次 ) , often ( 常,往往 ) , usually( 通常 ) , always( 总是 ) , seldom( 很少 ) , sometimes( 有时 ) 等时间状语连用。如: She is our English teacher. 她是我们的英语老师。 He takes a walk after supper every day. 他每天晚饭后散步。 The children go to school at seven every morning. 孩子们每天早晨七点上学。 2) 表示主语的特征、性格、能力等。如: He workshard. 他工作很努力。 ( 即:他是一个勤劳的人。 ) Does she like sports? 她爱好运动吗 ?( 即:她是个运动爱好者吗 ?) The children draw well. 这些孩子很会绘画。 ( 表示能力 ) 3) 表示客观事实或普遍真理。如: The sun rises in the east. 太阳从东方升起。 Two plus two makes four. 二加二等于四。 Knowledge is power ,知识就是力量。 现在一般时的其他用法 l) 在时间、条件状语从句中表示将来的动作。如: When they leave school, they will go to work in Tibet. 他们毕业后将到西藏去工作。 If You see him , will You tell him to ring me 叩 ? 如果你见到他,叫他给我打个电话好吗 ? We"ll visit the cotton mill if it is fine tomorrow. 如果明天天晴, 我们就去参观纺织厂。 2) 表示安排或计划好的将来的动作 ( 一般只限于某些表示移动的动词,如 go , come , leave , start 等 ) 。如: The train starts at ten o"clock in the morning. 火车将于上午十点钟开出。 When does the Japanese Youth delegation leave for Xian? 日本青年代表团什么时候去西安 ? Supper is at five today. 今天五点开晚饭。 3) 引用书籍报刊或其作者时,一般须用现在一般时。如: Marx says that a foreign language is a weapon in the struggle of life. 马克思说外国语是人生斗争的武器。 The story describes how a Young scientist develops a new theory. 故事描写一个青年科学家如何建立了一个新的理论。 4) 主句中的谓语动词如是过去时态,其宾语从句的谓语动词一般也须用过去时态。但宾语从句如说的是客观真理,它的谓语动词仍须用现在一般时。如: Galileo insisted that the earth moves round the sun. 伽利略坚持地球绕太阳运行的说法。 [ 注 ] 图片说明、电影说明、故事重述、戏剧的舞台说明以及报纸上的标题和故事的题目,常用现在一般时,小说一般用过去时态。但为了描写得生动,也往往用现在一般时和其他现在时态。 5) 在某些常用句子中表示在一个具体的现在时间所发生的动作或存在的状态 ( 即不是经常发生的动作或存在的状态 ) 。如: What time is it now? 现在是几点钟 ? The patient is much better now. 病人现在好多了。 What is Shanghai like now? 上海现在的情况如何 ? 在下面的感叹句中亦须用现在一般时。如: Here he comes. 他来了。 ( 注意 here 必须在句首 ) There goes the bell. 铃响了。 ( 注意 there 必须在句首 ) 过去一般时的基本概念 过去一般时 (past indefinite tense) 表示过去的动作或状态。这种动作或状态可能只限于一次,也可能是经常性的。如: He went to town yesterday. 他昨天进城了。 ( 一次性动作 ) The weather was warm last month. 上个月天气很暖和。 When I was Young I took cold baths regularly. 我年轻时常洗冷水浴。 ( 经常性动作 )
2023-08-01 04:17:291

思科路由器的串口的line protocol 频繁 updown

恢复出厂设置,修改密码,在创建一个新连接试试
2023-08-01 04:17:382

play的发音

play_百度翻译play 英[pleu026a] 美[pleu026a] n. 游戏; 比赛; 戏剧; 赌博;
2023-08-01 04:17:472

re-air broadcasts 什么意思

re air broadcasts再播放请采纳如果你认可我的回答,敬请及时采纳,~如果你认可我的回答,请及时点击【采纳为满意回答】按钮~~手机提问的朋友在客户端右上角评价点【满意】即可。~你的采纳是我前进的动力~~O(∩_∩)O,记得好评和采纳,互相帮助
2023-08-01 04:18:002

Cell Broadcasts是什么软件? 可以删除么?

G17已删,没有问题
2023-08-01 04:18:071

There was not until 1920 that regular radio broadcasts began.高手点解为什么填that

直到1920年,常规电台才正式开播!如果句子不是There而是IT的话这就是not...until的强调句型了notuntil引起的时间状语置于句首时,句子的主谓应部分倒装。由notuntil引导的时间状语从句位于句首时,主句应部分倒装,从句语序不变。如:Notuntil1998didhereturntohishometown.直到1998年他才回到家乡。NotuntilFathercamebackdidwebegintohavesupperlastnight.昨晚直到父亲回来,我们才开始吃晚饭。注意:当notuntil引导的状语或状语从句用于强调句型时,句子的主语不倒装。如将上两句改为强调句应为:Itwasnotuntil1998thathereturnedtohishometown.ItwasnotuntilFathercamebackthatwebegantohavesupperlastnight.
2023-08-01 04:18:141

wafs中文翻译

F implementation of final phase of wafs in 2004 F wafs的最后阶段于二零零四年实施。 World area forecast system wafs 世界区域预报系统 Swh charts in fpght documents would be replaced by the most appropriate wafs chart ( s ) 以最合适的wafsswh图取代飞行气象文件中的高层重要天气图。 A swh charts in fpght documents would be replaced by the most appropriate wafs chart A以最合适的wafs swh图取代飞行气象文件中的高层重要天气图。 In accordance with the wafs transition plan for asia pacific region , the following would take place in phases : - 按照亚太地区而设的wafs过渡方案,下述各项将分期进行: Airpnes are being requested to consider whether additional swm chart would be required from wafs for fpght operations e . g 天文台要求航空公司考虑在亚太地区飞行运作如etops是否需要额外的wafs swm图。 Airpnes are being requested to consider whether additional swm chart ( s ) would be required from wafs for fpght operations ( e . g 天文台要求航空公司考虑在亚太地区飞行运作(如etops )是否需要额外的wafsswm图。 Two world area forecast centres wafcs at london and washington broadcast the wafs products via satelptes . the hko receives the satelpte broadcasts from wafcs 分别位于伦敦及华盛顿的两个世界区域预报中心wafc通过人造卫星广播世界区域预报系统的产品。 Two world area forecast centres ( wafcs ) at london and washington broadcast the wafs products via satelptes . the hko receives the satelpte broadcasts from wafcs 分别位于伦敦及华盛顿的两个世界区域预报中心( wafc )通过人造卫星广播世界区域预报系统的产品。 We are happy to report that he has taken up the chair of the asia pacific wafs world area forecast system transition task force from the outgoing austrapan expert 在会上,岑智明获委任为亚太区世界航空区域预报系统wafs过渡专责小组主席,接替离任的澳洲专家。
2023-08-01 04:18:341

手机上的cell broadcasts不小心强制停止了,如何重新安装启动

这个没多大用的,广播传送之类的,删了都没事。
2023-08-01 04:18:411

求大神翻译一下

2023-08-01 04:18:501

如何提升ACTION

如何提升ACTION_SIM_STATE_CHANGED的接收速度?在Android中,BroadcastReceiver分动态注册和静态注册. 静态注册的一个优势就是:当你的BroadcastReceiver可以接受系统中某个broadcast时,系统会自动启动你的程序,从而让BroadcastReceiver完成相关处理; 而动态注册则只有在程序运行时且没有unregisterReceiver才能接收到broadcast.此时,假设我们要在系统开机后,要对SIM卡联系人进行读取操作,那么我们应该如何注册自己的BroadcastReceiver呢?方案一:通过静态注册receiver来处理ACTION_SIM_STATE_CHANGED的broadcast,当icc state为LOADED时,读取SIM卡联系人.这是一种比较常规的做法. 但是这个方案有一个比较严重的问题,那就是接收到broadcast的时机太晚了。结果就是,可能开机几分钟过去了,SIM卡联系人却还没加载出来。通过查看IccCardProxy中broadcastIccStateChangedIntent()函数的代码,我们发现,它发送的就是一个sticky broadcastActivityManagerNative.broadcastStickyIntent(intent, READ_PHONE_STATE, UserHandle.USER_ALL)按照常理来推断,一个sticky的broadcast不应该需要耗时这么久的。那问题究竟出在什么地方了呢?在调查这个问题之前,我们先简单看一下,静态注册的receiver和动态注册的receiver是如何被管理的呢?静态注册receiver:简单讲,系统启动时,创建PackageManagerService对象,简称PMS,然后通过scanDirLI函数对各个路径进行扫描,保存receiver等等main[] // PackageManagerService.javaPackageManagerService()scanDirLI()scanPackageLI(File scanFile, int parseFlags, int scanFlags, long currentTime, UserHandle user)parsePackage() // PackageParser.java// scanPackageLI(PackageParser...)调用scanPackageDirtyLI来进一步处理parsePackage()生成的PackageParser.Package对象pkg// scanPackageDirtyLI将pkg中的receiver添加到PMS的mReceivers中(具体代码:mReceivers.addActivity(a, "receiver")),// 并将pkg添加到PMS的mPackages中(具体代码:mPackages.put(pkg.applicationInfo.packageName, pkg))scanPackageLI(PackageParser.Package pkg, int parseFlags, int scanFlags, long currentTime, UserHandle user) // PackageManagerService.javaparseBaseApk(File apkFile, AssetManager assets, int flags) // PackageParser.javaparseBaseApk(Resources res, XmlResourceParser parser, int flags, String[] outError)parseBaseApplication() // // 将生成的receiver放到receivers中} else if (tagName.equals("receiver")) {Activity a = parseActivity(owner, res, parser, attrs, flags, outError, true, false);if (a == null) {mParseError = PackageManager.INSTALL_PARSE_FAILED_MANIFEST_MALFORMED;return false;}owner.receivers.add(a);} else if (tagName.equals("service")) {通过上面的简单分析,我们可以发现所有静态注册的receiver是通过PMS进行管理的.动态注册的receiver:相比静态注册,动态注册的流程要简单许多.registerReceiver(BroadcastReceiver receiver, IntentFilter filter) // ContextImpl.javaregisterReceiver(BroadcastReceiver receiver, IntentFilter filter, String broadcastPermission, Handler scheduler)registerReceiverInternal()registerReceiver() // AMS在AMS的registerReceiver函数中,receiver和broadcast filter相关信息被放到了mRegisteredReceivers和mReceiverResolver中.了解了静态注册和动态注册receiver在PMS和AMS中的大致流程后,再来看下IccCardProxy发送sticky broadcast时AMS的大概流程.broadcastStickyIntent(intent, READ_PHONE_STATE, UserHandle.USER_ALL) // ActivityManagerNative.javabroadcastIntent() // ActivityManagerService.java 简称AMSbroadcastIntentLocked()下面贴一下broadcastIntentLocked中比较重要的处理private final int broadcastIntentLocked(ProcessRecord callerApp, String callerPackage, Intent intent, String resolvedType, IIntentReceiver resultTo, int resultCode, String resultData, Bundle map, String requiredPermission, int appOp, boolean ordered, boolean sticky, int callingPid, int callingUid, int userId) { intent = new Intent(intent); // By default broadcasts do not go to stopped apps. intent.addFlags(Intent.FLAG_EXCLUDE_STOPPED_PACKAGES); ...... userId = handleIncomingUser(callingPid, callingUid, userId, true, ALLOW_NON_FULL, "broadcast", callerPackage); ...... /* * Prevent non-system code (defined here to be non-persistent * processes) from sending protected broadcasts. */ int callingAppId = UserHandle.getAppId(callingUid); ...... // Figure out who all will receive this broadcast. List receivers = null; // PMS中的结果 List<BroadcastFilter> registeredReceivers = null; // AMS中的结果 // Need to resolve the intent to interested receivers... if ((intent.getFlags()&Intent.FLAG_RECEIVER_REGISTERED_ONLY) == 0) { // 向PMS查询符合条件的receiver receivers = collectReceiverComponents(intent, resolvedType, callingUid, users); } if (intent.getComponent() == null) { if (userId == UserHandle.USER_ALL && callingUid == Process.SHELL_UID) { ...... } else {// 向AMS查询符合条件的receiver registeredReceivers = mReceiverResolver.queryIntent(intent, resolvedType, false, userId); } } final boolean replacePending = (intent.getFlags()&Intent.FLAG_RECEIVER_REPLACE_PENDING) != 0; ...... // 注意,这里用的是从AMS中查询出来的符合条件的receiver int NR = registeredReceivers != null ? registeredReceivers.size() : 0; if (!ordered && NR > 0) { // If we are not serializing this broadcast, then send the // registered receivers separately so they don"t wait for the // components to be launched. final BroadcastQueue queue = broadcastQueueForIntent(intent); BroadcastRecord r = new BroadcastRecord(queue, intent, callerApp, callerPackage, callingPid, callingUid, resolvedType, requiredPermission, appOp, registeredReceivers, resultTo, resultCode, resultData, map, ordered, sticky, false, userId); if (DEBUG_BROADCAST) Slog.v( TAG, "Enqueueing parallel broadcast " + r); final boolean replaced = replacePending && queue.replaceParallelBroadcastLocked(r); if (!replaced) { queue.enqueueParallelBroadcastLocked(r); queue.scheduleBroadcastsLocked(); } registeredReceivers = null; NR = 0; } ...... if ((receivers != null && receivers.size() > 0) || resultTo != null) { BroadcastQueue queue = broadcastQueueForIntent(intent); BroadcastRecord r = new BroadcastRecord(queue, intent, callerApp, callerPackage, callingPid, callingUid, resolvedType, requiredPermission, appOp, receivers, resultTo, resultCode, resultData, map, ordered, sticky, false, userId); if (DEBUG_BROADCAST) Slog.v( TAG, "Enqueueing ordered broadcast " + r + ": prev had " + queue.mOrderedBroadcasts.size()); if (DEBUG_BROADCAST) { int seq = r.intent.getIntExtra("seq", -1); Slog.i(TAG, "Enqueueing broadcast " + r.intent.getAction() + " seq=" + seq); } boolean replaced = replacePending && queue.replaceOrderedBroadcastLocked(r); if (!replaced) { // 注意,被放到ordered broadcast中了! queue.enqueueOrderedBroadcastLocked(r); queue.scheduleBroadcastsLocked(); } } return ActivityManager.BROADCAST_SUCCESS;}collectReceiverComponents()和mReceiverResolver.queryIntent()是broadcastIntentLocked()中两个重要的函数调用.分别初始化了broadcastIntentLocked()中的receivers和registeredReceivers变量.collectReceiverComponents()基本是通过调用AppGlobals.getPackageManager().queryIntentReceivers()来查询符合条件的receiver,也就是PMS的queryIntentReceivers()函数进行查询,进而通过PMS中mReceivers变量的queryIntent来执行查询操作.可见,collectReceiverComponents()最终查询到的是静态注册的符合条件的receiver.再来简单看下mReceiverResolver.queryIntent()方法的查询结果. 我们在执行AMS的registerReceiver()时,将broadcast以及broadcast filter相关的信息放到了mReceiverResolver中,因此,这里查询到的是所有符合条件的动态注册的receiver.最终,符合条件的静态注册的receiver被保存在broadcastIntentLocked函数中receivers变量中;符合条件的动态注册的receiver被保存在registeredReceivers变量中。在接下来enqueueParallelBroadcastLocked时,却只使用了registeredReceivers,即动态注册的receiver. 而静态注册的receiver却被enqueueOrderedBroadcastLocked放到了ordered broadcast队列中!下面再来简单看下BroadcastQueue对broadcast的处理流程:scheduleBroadcastsLocked()handleMessage() // BroadcastQueue$BroadcastHandlerprocessNextBroadcast()deliverToRegisteredReceiverLocked() // non-orderedperformReceiveLocked()scheduleRegisteredReceiver() // ActivityThread$ApplicationThreadperformReceive() // LoadedApk$ReceiverDispatchermActivityThread.post(args)run() // LoadedApk$Argsreceiver.onReceive(mContext, intent) // 执行BroadcastReceiver的onReceive方法processCurBroadcastLocked() // orderedscheduleReceiver() // ActivityThread$ApplicationThreadhandleMessage() // ActivityThread$HhandleReceiver() // ActivityThreadreceiver.onReceive(context.getReceiverRestrictedContext(), data.intent) // 执行BroadcastReceiver的onReceive方法由于ordered broadcast是一条一条来处理,也就不难发现为什么我们静态注册的接收ACTION_SIM_STATE_CHANGED的broadcast receiver很晚才能被启动了.既然静态注册的receiver只能接受ordered broadcast后,如果想提升接收broadcast的速度,那我们只能使用动态注册receiver了。也就引出了我们的第二个方案.方案二:通过自定义Application并在自定义Application中动态注册receiver来处理ACTION_SIM_STATE_CHANGED的broadcast,在AndroidManifest.xml中声明时为自定义的application添加android:persistent="true"属性. 这样就可以大幅提升接收ACTION_SIM_STATE_CHANGED的速度,但这是为什么呢?在AMS的systemReady()中将通过PMS的getPersistentApplications()获得所有persistent属性为true的程序,并将他们启动起来. 即在进入launcher之前就被启动了.而我们在自定义的Application的onCreate()中注册receiver, 来接收ACTION_SIM_STATE_CHANGED的broadcast,我们的receiver将被AMS管理,进而我们就可以更快的接收到broadcast了(参考上文对AMS中broadcastIntentLocked()的分析). 但是这个方案也不是完美的,因为它声明了persistent=“true”,会占用内存以及增加开机时间.自定义Application的代码:public class MyApp extends Application {private BroadcastReceiver mReceiver = new BroadcastReceiver() {@Overridepublic void onReceive(Context context, Intent intent) {// TODO}};@Overridepublic void onCreate() {super.onCreate();IntentFilter intentFilter = new IntentFilter(TelephonyIntents.ACTION_SIM_STATE_CHANGED);intentFilter.addAction(Intent.ACTION_BOOT_COMPLETED);registerReceiver(mReceiver, intentFilter);}}在AndroidManifest中的声明:<applicationandroid:name="MyApp"android:label="@string/app_name"android:persistent="true">...</application>不止ACTION_SIM_STATE_CHANGED,其它的broadcast receiver也可以采用方案二的做法来更快速的接收broadcast,就看自己有没有这个需要了.写的比较仓促,有纰漏之处,敬请批评指正!
2023-08-01 04:19:041

如果世界上没有广告了英语作文200字

Nowadays, more and more advertisements appear on newspapers, broadcasts,magazines as well as streets. People have different views on advertisements. Some people think advertisements can help people to have a wide choice of goods and they help consumers know the goods and businessmen better. The consumers can gain not only knowledge of goods but also artistic enjoyment. Contrary to those people, many others think advertisements are very unpleasant.Consumers are often cheated by the false advertisement on which consumers always waste a great deal of time. What is more, consumers fell annoyed to be interrupted when they are watching TV plays. So advertisements should be limited. But whether you like it or not, advertisements have become a part of our life. 广告 现在越来越多的广告出现在报纸、广播、杂志甚至街头,人们对此有不同的看法。 一些人认为广告能拓宽人们对商品的选择,使消费者更好地了解商品和商家。消费者不仅能够获得商品知识,也能得到艺术享受。 相反,另外一些人认为广告很令人讨厌。消费者经常被虚假广告欺骗,而且人们在这些广告上浪费了大量的时间。更有甚者,消费者觉得看电视剧时插播广告让人心烦。因此,广告应当受到限制。 不管你喜不喜欢广告,它已经成为我们生活的一部分。
2023-08-01 04:19:141

s开头的英文单词,100个 最好是名字

s the plans.") social - ad. of or about people or a group soft - ad. not hard; easily shaped; pleasing to touch; not loud soil - n. earth in which plants grow soldier - n. a person in the army solid - ad. having a hard shape with no empty spaces inside; strong; not in the form of a liquid or gas solve - v. to find an answer; to settle some - ad. of an amount or number or part not stated; not all son - n. a person"s male child soon - ad. not long after the present time; quickly sort - n. any group of people or things that are the same or are similar in some way; a kind of something sound - n. fast-moving waves of energy that affect the ear and result in hearing; that which is heard south - n. the direction to the right of a person facing the rising sun space - n. the area outside the earth"s atmosphere where the sun, moon, planets and stars are; the area between or inside things speak - v. to talk; to say words with the mouth; to express one"s thoughts to others and exchange ideas; to give a speech to a group special - ad. of a different or unusual kind; not for general use; better or more important than others of the same kind speech - n. a talk given to a group of people speed - v. to make something go or move faster; n. the rate at which something moves or travels; the rate at which something happens or is done spend - v. to give as payment; to use ("He spends much time studying.") spill - v. to cause or permit liquid to flow out, usually by accident spirit - n. the part of a human that is not physical and is connected to thoughts and emotions; the part of a person that is believed to remain alive after death split - v. to separate into two or more parts; to divide or break into parts sport - n. any game or activity of competition involving physical effort or skill spread - v. to become longer or wider; to make or become widely known spring - n. the time of the year between winter and summer spy - v. to steal or get information secretly; n. one who watches others secretly; a person employed by a government to get secret information about another country square - n. a flat shape having four equal sides stab - v. to cut or push into or through with a pointed weapon stand - v. to move into or be in a position in which only the feet are on a surface; to be in one position or place star - n. a mass of gas that usually appears as a small light in the sky at night, but is not a planet; a famous person, usually an actor or singer start - v. to begin; to make something begin starve - v. to suffer or die from a lack of food state - v. to say; to declare; n. a political part of a nation station - n. a place of special work or purpose ("a police station"); a place where passengers get on or off trains or buses; a place for radio or television broadcasts statue - n. a form of a human, animal or other creature usually made of stone, wood or metal stay - v. to continue to be where one is; to remain; to not leave; to live for a time ("They stayed in New York for two years.") steal - v. to take without permission or paying steam - n. the gas that comes from hot water steel - n. iron made harder and stronger by mixing it with other substances step - v. to move by lifting one foot and placing it in a new position; n. the act of stepping; one of a series of actions designed to reach a goal stick - v. to attach something to another thing using a substance that will hold them together; to become fixed in one position so that movement is difficult ("Something is making the door stick."); n. a thin piece of wood still - ad. not moving ("The man was standing still."); until the present or a stated time ("Was he still there?"); even so; although ("The job was difficult, but she still wanted to do it.") stone - n. a small piece of rock stop - v. to prevent any more movement or action; to come or bring to an end store - v. to keep or put away for future use; n. a place where people buy things storm - n. violent weather, including strong winds and rain or snow story - n. the telling or writing of an event, either real or imagined stove - n. a heating device used for cooking straight - ad. continuing in one direction without turns strange - ad. unusual; not normal; not known street - n. a road in a city, town or village stretch - v. to extend for a distance; to pull on to make longer or wider strike - v. to hit with force; to stop work as a way to seek better conditions, more pay or to make other demands strong - ad. having much power; not easily broken, damaged or destroyed structure - n. the way something is built, made or organized; a system that is formed or organized in a special way; a building struggle - v. to try with much effort; to fight with; n. a great effort; a fight study - v. to make an effort to gain knowledge by using the mind; to examine carefully stupid - ad. not able to learn much; not intelligent subject - n. the person or thing being discussed, studied or written about submarine - n. an underwater ship substance - n. the material of which something is made (a solid, liquid or gas) substitute - v. to put or use in place of another; n. a person or thing put or used in place of another subversion - n. an attempt to weaken or destroy a political system or government, usually secretly succeed - v. to reach a goal or thing desired; to produce a planned result such - ad. of this or that kind; of the same kind as; similar to sudden - ad. not expected; without warning; done or carried out quickly or without preparation suffer - v. to feel pain in the body or mind; to receive or experience hurt or sadness sugar - n. a sweet substance made from liquids taken from plants suggest - v. to offer or propose something to think about or consider summer - n. the warmest time of the year, between spring and autumn sun - n. the huge star in the sky that provides heat and light to earth supervise - v. to direct and observe the work of others supply - v. to give; to provide; n. the amount of something that can be given or sold to others support - v. to carry the weight of; to hold up or in position; to agree with others and help them reach a goal; to approve suppose - v. to believe, think or imagine ("I suppose you are right."); to expect ("It is supposed to rain tonight.") suppress - v. to put down or to keep down by force; to prevent information from being known publicly sure - ad. very probable; with good reason to believe; true without question surface - n. the outer side or top of something ("The rocket landed on the surface of the moon.") surplus - n. an amount that is more than is needed; extra; ("That country has a trade surplus. It exports more than it imports.") surprise - v. to cause a feeling of wonder because something is not expected; n. something not expected; the feeling caused by something not expected surrender - v. to give control of oneself or one"s property to another or others; to stop fighting and admit defeat surround - v. to form a circle around; to be in positions all around someone or something survive - v. to remain alive during or after a dangerous situation suspect - v. to imagine or believe that a person is guilty of something bad or illegal; n. a person believed to be guilty suspend - v. to cause to stop for a period of time swallow - v. to take into the stomach through the mouth swear in - v. to put an official into office by having him or her promise to carry out the duties of that office ("The chief justice will swear in the president.") sweet - ad. tasting pleasant, like sugar swim - v. to move through water by making motions with the arms and legs sympathy - n. a sharing of feelings or emotions with another person, usually feelings of sadness system - n. a method of organizing or doing something by following rules or a plan; a group of connected things or parts working together for a common purpose or goal
2023-08-01 04:19:211

第三版大学英语精读第1册翻译

Some Strategies for Learning English Learning English is by no means easy. It takes great diligence and prolonged effort. 学习英语绝非易事.它需要刻苦和长期努力. Nevertheless, while you cannot export to gain a good command of English without sustained hard work, there are various helpful learning strategies you employ to make the task easier. Here are some of them. 虽然不经过持续的刻苦努力便不能期望精通英语,然而还是有各种有用的学习策略可以用来使这一任务变得容易一些.一下便是其中的几种. 1. Do not treat all new words in exactly the same way. Have you ever complained about your memory because you find it simply impossible to memorize all the new words you are learning? But, in fact, it is not your memory that is at fault. If you cram your head with too many new words at a time, some of them are bound to be crowded out. What you need to do is to deal with new words in different ways according it how frequently they occur in everyday use. While active words demand constant practice and useful words must be committed to memory, words that do not often occur in everyday situations require just a nodding acquaintance. You will find concentrating on active and useful words the most effective route to enlarging your vocabulary. 不要以完全相同的方式对待所有的生词.你可曾因为简直无法记住所学的所有生词而抱怨自己的记忆力太差?其实,责任并不在你的记忆力.如果你一下子把太多的生词塞进头脑,必定有一些生词会被挤出来.你需要做的是根据生词日常使用的频率以不同的方式对待它们.积极词汇需要经常练习,有用的词汇必须牢记,而在日常情况下不常出现的次只需要见到时认识即可.你会发现把注意力集中于积极有用的词上是扩大词汇量最有效的途径. 2. Watch out for idiomatic ways of saying things. Have you ever wondered why we say, “I am interested in English”, but “I am good at French”? And have you ever asked yourself why native English speakers say, “learn the news or secret”, but “learn of someone"s success or arrival”? These are all examples of idiomatic usage. In learning English, you must pay attention not only to the meaning of a word, but also to the way native speakers use it in their daily lives. 密切注意地道的表达方式.你可曾纳闷过,为什么我们说 “我对英语感兴趣”是 “I"m interested in English”, 而说 “我精于法语”则是 “I"m good at French”? 你可曾问过自己,为什么以英语为母语的人说 “获悉消息或秘密”是 “learn the news or secret”, 而 “获悉某人的成功或到来”是 “learn of someone"s success or arrival”?这些都是惯用法的例子.再学习英语时,你不仅必须注意词义,还必须注意以英语为母语的人在日常生活中如何使用它. 3. Listen to English every day. Listening to English on a regular basis will not only improve your ear, but will also help you build your speaking skills. In addition to language tapes especially prepared for your course, you can also listen to English radio broadcasts, watch English TV, and see English movies. The first time you listen to a taped conversation or passage in English, you may not be able to catch a great deal. Try to get its general meaning first and listen to it over and over again. You will find that with each repetition you will get something more. 每天听英语.经常听英语不仅不提高你的听力,而且有助你培养说的技能.除了专为课程准备的语言磁带外,你还可以听英语广播,看英语电视和英语电影.第一次听录好音的英语对话或语段,你也许不能听懂很多.先试着听懂大意,然后再反复地听.你会发现每次重复都会听懂很多更多的东西. 4. Seize opportunities to speak. It is true that there are few situations at school where you have to communicate in English, but you can seek out opportunities to practice speaking the language. Talking with your classmates, for example, can be an easy and enjoyable way to get some practice. Also try to find native speaker on your campus and feel free to talk with them. Perhaps the easiest way to practice speaking is to rehearse aloud, since this can be done at any time, in any place, and without a partner. For instance, you can look at pictures or objects around you and try to describe them in detail. You can also rehearse everyday situations. After you have made a purchase in a shop or finished a meal in a restaurant and paid the check, pretend that all this happened in an English-speaking country and try to act it out in English. 抓住机会说.的确,在学校里必须用英语交流的场合并不多,但你还是可以找到练习的英语的机会.例如,跟你的同班同学进行交谈可能就是得到一些练习的一种轻松愉快的方式.还可以找校园里以英语为母语的人跟他们随意交谈.或许练习讲英语最容易的方式是高声朗读,因为这在任何时间,任何地方,不需要搭档就可以做到.例如,你可以看着图片或身边的物件,试着对它们详加描述.你还可以复述日常情景.在商店里购物或在餐馆里吃完饭付过账后,假装这一切都发生在一个讲英语的国家,试着用英语把它表演出来. 5. Read widely. It is important to read widely because is our learning environment; reading is the main and most reliable source of language input. When you choose reading materials, look for things that you find interesting, that you can understand without relying too much on a dictionary. A page a day is a good way to start. As you go on, you will find that you can do more pages a day and handle materials at a higher lever of difficulty. 广泛阅读.广泛阅读很重要,因为在我们的学习环境中,阅读是最重要,最可靠的语言输入来源.在选择阅读材料时,要找你认为有趣的,不需要过多依赖词典就能看懂的东西.开始时每天读一页是个好办法.接下去,你就会发现你每天可以读更多页,而且能对付难度更高的材料. 6. Write regularly. Writing is a good way to practice what you already know. Apart from compositions assigned by your teacher, you may find your own reasons for writing. A pen pal provides good motivation; you will learn a lot by trying to communicate with someone who shares your interests, but comes from a different culture. Other ways to write regularly include keeping a diary, writing a short story and summarizing the daily news. 经常写,写作是练习你已经学会的东西的好方法.除了老师布置的作文,你还可以找到自己要写的理由.有个笔友可以提供很好的动力;与某个跟你趣味相投但来自不同文化的人进行交流,你会学到很多东西.经常写作的其他方式还有记日记,写小故事或概述每天的新闻. Language learning is a process of accumulation. It pays to absorb as much as you can from reading and listening and then try to put what you have learned into practice through speaking and writing. 语言学习是一个积累的过程.从读和听中吸收尽量多的东西,然后再试着把学到的东西通过说和写
2023-08-01 04:19:301

television broadcasts are ____ to an area that is within sight of the sending station of its relay.

aired
2023-08-01 04:20:461

怎么在linux下安装oracle数据库

方法/步骤1检查硬件是否满足要求1)确保系统有足够的 RAM 和交换空间大小,运行以下命令: #grep MemTotal /proc/meminfo #grepSwapTotal /proc/meminfo 注:所需最小 RAM 为 512MB,而所需最小交换空间为 1GB。对于 RAM 小于或等于 2GB 的系统,交换空间应为 RAM 数量的两倍;对于 RAM 大于 2GB 的系统,交换空间应为 RAM 数量的一到两倍。2)确保有足够的磁盘空间。Oracle 10g软件大约需要 2.5GB 的可用磁盘空间,数据库则另需至少1.2G的磁盘空间3)/tmp 目录至少需要 400MB 的可用空间。 要检查系统上的可用磁盘空间,运行以下命令: #df-h2检查系统是否已安装所需的开发包使用rpm -qa命令,确保以下包已成功安装。对于包的版本,只有版本高于下面的都可以,如果低于此版本,则要升级处理,如下:binutils-2.15.92.0.2-13.EL4compat-db-4.1.25-9compat-libstdc++-296-2.96-132.7.2control-center-2.8.0-12gcc-3.4.3-22.1.EL4gcc-c++-3.4.3-22.1.EL44glibc-2.3.4-2.9glibc-common-2.3.4-2.9gnome-libs-1.4.1.2.90-44.1libstdc++-3.4.3-22.1libstdc++-devel-3.4.3-22.1make-3.80-5pdksh-5.2.14-30sysstat-5.0.5-1xscreensaver-4.18-5.rhel4.2setarch-1.6-1libaio-0.3.103-33创建oracle组和oracle用户创建用于安装和维护 Oracle 10g软件的 Linux 组和用户帐户。用户帐户将称为 oracle,而组将称为 oinstall(用于软件安装) 和 dba(用于数据库管理)。#groupadd oinstall#groupadd dba#useradd -m -g oinstall -G dba oracle –poracle (p表示添加帐号密码)创建oracle目录并改变目录权限现在,创建存储 Oracle 10g 软件和数据库文件的目录。本指南在创建目录结构时所用的命名惯例符合最佳灵活结构 (OFA) 规范。以 root 用户身份执行以下命令:#mkdir -p /u01/app/oracle # oracle根目录,-p 表示递归建立目录#mkdir -p /u02/oradata # oracle数据文件存放目录#chown -R oracle:oinstall /u01 #chown -R oracle:oinstall /u02#chmod -R 775 /u01#chmod -R 775 /u024配置linux内核参数#vi/etc/sysctl.conf,添加如下内容:kernel.shmall = 2097152 kernel.shmmax = 2147483648 #此处默认设置为2G,数值一般设为物理内存的40~50%kernel.shmmni = 4096kernel.sem = 250 32000 100 128fs.file-max = 65536net.ipv4.ip_local_port_range = 1024 65000net.core.rmem_default = 262144net.core.rmem_max = 262144net.core.wmem_default = 262144net.core.wmem_max = 262144 完成后,运行以下命令激活更改:#sysctl–p 注:Linux 内核非常出色。与大多数其他 *NIX 系统不同,Linux 允许在系统启动和运行时修改大多数内核参数。完成内核参数更改后不必重新启动系统。Oracle 数据库 10g 需要以下所示的内核参数设置。其中给出的是最小值,因此如果您的系统使用的值较大,则不要更改它。配置oracle用户的shell限制#vi /etc/security/limits.conf 添加如下内容:oracle soft nproc 2047oracle hard nproc 16384oracle soft nofile 1024oracle hard nofile 65536 #vi /etc/pam.d/login 添加如下内容:session required pam_limits.so导出x图形界面给oracle用户由于安装时采用的是oracle的OUI图形化界面,需要X支持,而默认oracle用户是不支持图形化操作的,必须以root的身份导出X给oracle用户使用。运行如下命令:#xhost +access control disabled,clients can connect from any host出现以上文字表示导出成功。5oracle用户下执行 1.2.1设置环境变量#su –oracle$vi .bash_profile 加入以下内容:TMP=/tmpTMPDIR=$TMPORACLE_BASE=/u01/app/oracle #oracle 根目录ORACLE_HOME=$ORACLE_BASE/product/10.2.0/db_1 #oracle 家目录ORACLE_SID=orcl #根据实际需要命名LD_LIBRARY_PATH=$ORACLE_HOME/lib:/lib:/usr/libPATH=$ORACLE_HOME/bin:$PATHexportTMP TMPDIR ORACLE_BASE ORACLE_HOME ORACLE_SID LD_LIBRARY_PATH PATH $source .bash_profile #使环境变量生效2、安装 Oracle2.1、下载并解压oracle软件从Oracle网站下载10201_database_linux_x86_32.cpio.gz到oracle用户家目录下/home/oracle/(也可为其他目录),使用oracle用户登录后,解压此文件:$startx$cd /home/oracle$gunzip 10201_database_linux_x86_64.cpio.gz $cpio -idmv <10201_database_linux_x86_64.cpio 以上操作将Oracle安装文件解压到database/目录。(根据下载的包的格式不同,解压出来后的目录格式可能不同。)2.2、Oracle OUI进行图形化安装(推荐使用高级安装方式)切换到database/目录下,运行以下命令: $cd database $./runInstaller6检验是否安装成功数据库正常安装结束后,默认是启动的。以oracle用户身份运行以下命令测试:$sqlplus/ as sysdbaSQL>selectopen_mode from v$database; OPEN_MODE------------------READ WRITE若出现以上文字说明数据库正在正常运行。自此,数据库安装成功。http://jingyan.baidu.com/article/11c17a2c7c0c69f446e39d06.html
2023-08-01 04:20:582

北京09年自考口译与听力(听力部分)考试说明

课程性质:《口译与听力》(听力部分)是高等教育自学考试英语专业基础课考试计划中的一门必修课。总体水平相当于普通高等院校英语专业四年制本科结业时的听力水平。   课程要求:   1.能听懂英语国家人士关于日常生活、社会与文化的讲话、交谈或讲座,理解中心大意,抓住主要论点。   2.能听懂英语国家有关政治、经济、历史、文化以及风土人情的广播和电视节目的主要内容。   3.语速为每分钟150-170词,接近英语国家人士的日常说话速度。   学习书目:《英语高级听力》,何其莘等编写,外语教学与研究出版社,1992年版。   考试安排:考试时间共约30分钟,满分100分,共分四部分。每个问题答题时间为14秒。除第三部分短文填空读三遍外,其它题型均只读一遍。   题量及分值:   Part I 10个小题,每小题2分,共20分   Part II 10个小题,每小题2分,共20分   Part III 15个空,每空2分,共30分   Part IV 10个小题,每小题3分,共30分   题型说明:   Part I 是陈述(Statement),问题在考生卷中印出。   Part II是对话(Conversation)。   Part III为短文填空(Text Completion),每空填一个词或数字。短文的题材主要涉及社会、教育、文化、风俗人情、历史地理等方面的内容,多选自英语母语者的演讲和讲座等。   Part IV为新闻报道(News Broadcast),本部分一般由5条新闻组成,均为政治、经济、文化、社会等方面的重要新闻。就每条新闻提出2个问题,问题在考生卷中印出。   样题举例:   Part I STATEMENT   In this part of the test,you will hear 10 short statements.After each statement there will be a 14-second pause.During the pause,read the question and the four possible choices marked A,B,C and D,and decide which one is closest in meaning to the statement you have just heard.On the ANSWER SHEET,mark your choice of answer.( 20%)   1.   听力原文   To apply for your VISA you need to go to Room 201 first to confirm your identity.   Q:Where are you most likely to hear this statement?   考生卷   Q:Where are you most likely to hear this statement?   A.In a police station.   B.In a tourist information centre.   C.In a foreign embassy.   D.In a bank.   2.   听力原文   I have found another problem with my washing machine,as if one is not enough.   Q:What is the speaker trying to say?   考生卷   Q:What is the speaker trying to say?   A.The speaker is not sure about the number of the problems.   B.The speaker is complaining about the quality of the washing machine.   C.The speaker is trying to find more problems.   D.The speaker is ready to buy another washing machine.   3.   听力原文   Cathy"s dresses are anything but expensive though she has a substantial bank account.   Q:What can we infer about Cathy?   考生卷   Q:What can we infer about Cathy?   A.She sets up a special account to buy expensive dresses.   B.She spends a lot on her dresses.   C.She puts every penny she saves to her bank account.   D.She doesn"t spend much on her dresses.   Part II CONVERSATION   In this part of the test,you will hear 10 short conversations between two speakers.At the end of each conversation,a third voice will ask a question about what was said.After the question there will be a 14-second pause.During the pause,read the four possible choices and decide which one would be the best answer to the question you have just heard.On the ANSWER SHEET,find the number of the question and mark your choice of answer.( 20%)   1.   听力原文   W:During the last thunderstorm I noticed several leaks in my bedroom ceiling and they really caused a mess.   M:Maybe you have some broken tiles.I have the phone number of a good roofing company that could do a good repair job for you at a reasonable price.   Q:What can we conclude from this conversation?   考生卷   A.The roof of the woman"s house needs to be repaired.   B.The roof of the man"s house has several bad leaks.   C.The woman"s bathroom was badly damaged.   D.The man works for a roofing company.   2.   听力原文   W:If I were you,I wouldn"t interrupt the boss while he"s in an important meeting.Wait till he gets back to his office.   M:I have to. He told me to bring him this letter as soon as it arrived,even if he was in the bathroom.   Q:Where is the boss?   考生卷   A.In his office.   B.In a meeting.   C.In the bathroom.   D.In another room.   3.   听力原文   W:Friday"s speaker is supposed to be wonderful.Are you going to attend the seminar on that day?   M:Yes.But I haven"t been able to get the ticket yet.Since the lecture is open to the public,I imagine that the tickets may have already been sold out.   Q:Why is the man afraid he won"t be able to attend the seminar?   考生卷   A.He doesn"t think that there will be enough seats for everybody.   B.He doesn"t think that the speaker will show up.   C.He doesn"t think that the seminar will be open to the public.   D.He doesn"t think that there may be any more tickets available.   Part III TEXT COMPLETION   In this part of the test,you are going to hear a passage.Some words or numbers on the printed passage have been taken out.Listen carefully and fill in the blanks on the ANSWER SHEET with the words or numbers you hear.The passage will be read THREE times.(30%)   听力原文   Let"s use paper as an example.The first step is to raise public awareness about the recycling process,to explain the kinds of materials that can be recycled,and provide ways on how to properly dispose of them.Local governments should educate the public on how to properly sort reusable materials from those,like waxed paper,carbon paper,plastic material such as fast food wrappers,that can"t be recycled very easily.Then,a system of collecting these sorted materials needs to be established.The public interest might be there,but soon may wane if there isn"t a system where they can take these materials to be recycled.Sometimes we become complacent when it comes to recycling,but when you speak in terms of actual facts and figures that everyone can understand,people become more aware of the problem.I remember reading one time that the energy saved from one recycled aluminum can will provide enough power to operate a television for three hours.Give the public information they can grasp,and then you will increase your chances of gaining followers.   考生卷   Let"s use paper as an example.The first step is to _____public awareness about the recycling process,to explain the kinds of_______ that can be recycled,and provide ways on how to properly______ of them.Local_______should educate the public on how to properly sort_________materials from those,like waxed paper,carbon paper,plastic material such as fast food wrappers,_______can"t be recycled very easily.Then,a system of________these sorted materials needs to be established.The public interest_________be there,but soon may wane if there isn"t a system________they can take these materials to be recycled.Sometimes we become complacent when_________comes to recycling,but when you speak in terms of actual facts and figures that everyone can understand,people   become_________aware of the problem.I remember reading one time that the energy saved_______one recycled aluminum can will provide enough power to________ a television for three hours.Give the public_________they can grasp,and then you will______your chances of gaining followers.   Part IV NEWS BROADCAST   In this part of the test,you will hear 5 news broadcasts from foreign broadcast corporations.You will hear them once only.(30%)   Questions 1and 2 are based on the following news.At the end of the news item,you will be given 14 seconds to answer each question.On the ANSWER SHEET,mark your choice of answer.   听力原文   News Item One   PepsiCo of the US and Unilever of the UK have become the latest foreign entrance in China"s competitive bottle tea market.The two companies launched Lipton"s iced tea in Guangzhou last week in a fifty-fifty venture.PepsiCo is contributing its bottling facilities and distribution networks to the alliance while Unilever provides the famous tea brand and recipe,company executive said.China has a growing bottle tea market estimated to be worth 10 billion Yuan.It has been dominated in recent years by two Taiwanese brands:Master Kong and Uni-president.Three other big brands – Nestle,Guangdong-based Jianlibao and Lipton have just entered the market this year.Swiss company Nestle is working in conjunction with Coca Cola.   Q:1.The news item is manly about a joint venture between___________.   2.Who will provide the distribution networks in the joint venture?   考生卷   1.The news item is manly about a joint venture between___________.   A.a US company and a UK company   B.a Swiss company and a UK company   C.two Taiwanese companies   D.a mainland company and a US company   2.Who will provide the distribution networks in the joint venture?   A.Unilever.   B.Nestle.   C.PepsiCo.   D.Coca Cola   Questions 1 and 2are based on the following news.At the end of the news item,you will be given 14 seconds to answer each question.On the ANSWER SHEET,mark your choice of answer.   听力原文   News Item Two   Britain has announced that it is to cancel about 200 million pounds worth of the debts owed to it by poorer commonwealth countries.The International Development Secretary says the relief was being offered to countries committed to eliminating poverty and pursuing good government.This would include taking action against corruption.At the same time,Common Market Finance Ministers are meeting in Mauritius.Britain is expected to put forward a fresh initiative on reducing the debts of the poorest countries.The Chancellor of Exchequer has indicated that he plans to revive a scheme put forward last year by the International Monetary Fund which has not yet provided any relief.ue003   Q:1.Which of the following is NOT a condition for the reduction of debts???   2.By canceling the debts owed to her,Britain intends to ___a similar scheme proposed by the International Monetary Fund.?   考生卷   1.Which of the following is NOT a condition for the reduction of debts???   A.Commitment to wiping out poverty.   B.Commitment to good government.   C.Commitment to fighting against corruption.   D.Commitment to narrowing the gap between the rich and the poor.   2.By canceling the debts owed to her,Britain intends to ___a similar scheme proposed by the International Monetary Fund.?   A.reject?   B.restart?   C.follow   D.review   Questions 1 and 2 are based on the following news.At the end of the news item,you will be given 14 seconds to answer each question.On the ANSWER SHEET,mark your choice of answer.   听力原文   News Item Three   Israel and PLO,after 6 days of intensive negotiations,meet again later today for what they say they hope will be the final initialing of an agreement on extending Palestinian self-rule in the West Bank.The two sides had been optimistic about reaching agreement yesterday.But last minute hitches arose over the timetable for releasing thousands of prisoners and the arrangements for the redeployment of Israeli troops.The BBC Jerusalem correspondent says it appears the two sides have made progress on one of the most difficult issues of all,the future of Hebron,the only town in the West Bank where there is a community of Jewish settlers.   Q:   1. The 6-day negotiations between the PLO and Israel are mainly about   2.What progress has been made in their negotiations?ue003   考生卷   1. The 6-day negotiations between the PLO and Israel are mainly about   A.the extension of Palestinian self-rule.   B.the establishment of Jewish settlement.ue003   C.the arrangement of PLO troops.   D.the reconstruction of Hebron.   2. What progress has been made in their negotiations?ue003   A.Israeli troops can stay on in the West Bank.ue003   B.Israel has released thousands of prisoners.ue003   C.PLO and Israel have made a final agreement   D.Agreement has been reached on the future of Hebron.
2023-08-01 04:21:071

win7中运行regedit依次找到ForwardBroadcasts,其中它的数值默认是多少,调成0会怎样

原始值为00000000
2023-08-01 04:21:141

什么是p2p交易模式?

这样一来,P2P也就可以理解为“伙伴对伙伴”的意思,或称为对等联网。目前人们认为其在加强网络上人的交流、文件交换、分布计算等方面大有前途。 简单的说,P2P直接将人们联系起来,让人们通过互联网直接交互。P2P使得网络上的沟通变得容易、更直接共享和交互,真正地消除中间商。P2P就是人可以直接连接到其他用户的计算机、交换文件,而不是像过去那样连接到服务器去浏览与下载。P2P另一个重要特点是改变互联网现在的以大网站为中心的状态、重返“非中心化”,并把权力交还给用户。 P2P看起来似乎很新,但是正如B2C、B2B是将现实世界中很平常的东西移植到互联网上一样,P2P并不是什么新东西。在现实生活中我们每天都按照P2P模式面对面地或者通过电话交流和沟通。 即使从网络看,P2P也不是新概念,P2P是互联网整体架构的基础。互联网最基本的协议TCP/IP并没有客户机和服务器的概念,所有的设备都是通讯的平等的一端。在十年之前,所有的互联网上的系统都同时具有服务器和客户机的功能。当然,后来发展的那些架构在TCP/IP之上的软件的确采用了客户机/服务器的结构:浏览器和Web服务器,邮件客户端和邮件服务器。但是,对于服务器来说,它们之间仍然是对等联网的。以email为例,互联网上并没有一个巨大的、唯一的邮件服务器来处理所有的email,而是对等联网的邮件服务器相互协作把email传送到相应的服务器上去。另外用户之间email则一直对等的联络渠道。 当然但是过去的5年里,互联网的发展至少从表面上远离了P2P,互联网上绝大部分的节点也不能和其他节点直接地交流。Napster正是唤醒了深藏在互联网背后的对等联网。Napster的文件共享功能在局域网中共享目录也是再平常不过的事情。但是Napster的成功促使人们认识到把这种“对等联网”拓展到整个互联网范围的可能性。当然,在许多人的眼中,Napster并不是纯粹的P2P,它仍然需要一个处于中心协调机制。 事实上,网络上现有的许多服务可以归入P2P的行列。即时讯息系统譬如ICQ、AOL Instant Messenger、Yahoo Pager、微软的MSN Messenger以及国内的OICQ是最流行的P2P应用。它们允许用户互相沟通和交换信息、交换文件。用户之间的信息交流不是直接的,需要有位于中心的服务器来协调。但这些系统并没有诸如搜索这种对于大量信息共享非常重要的功能,这个特征的缺乏可能正 是为什么即时讯息出现很久但是并没有能够产生如Napster这样的影响的原因之一。 另外一个可以归入P2P是拍卖网站譬如eBay,人们在总结eBay的模式的时候用了C2C,是不是和P2P有一点类似?eBay就是一个将人们联系的和交易物品的社区,用户可以方便的搜索其他用户叫卖的商品。eBay提供了一些使得交易得以顺利进行的服务,但是交易是直接在用户之间进行的。如果将“交易”的概念推广,C2C就是P2P的一个特例,这里人们互相交换的是商品。 但如果仔细深究的话,Napster和即时讯息在赋予用户之间直接交流的能力、eBay使用户可以直接交易的同时,却破坏了服务器端的那种自互联网出现之初就存在的对等联网思想,因为它们都需要有一个位于中心的服务器来协调,而不是分布在世界上不同地方的、对等联网的许多服务器。
2023-08-01 04:16:041

我想玩UD请问哪里能找到很具体的UD开局的介绍啊

分类: 游戏 解析: 蜘蛛流zhidao.baidu/question/3774627 天地鬼 天地双鬼基础讲座(已点击563次) 大多数魔兽玩家,无论是不是使用不死族,几乎都听说过“天地双鬼”这个战术,这是由Cherry.Lucifer首创,与蜘蛛流齐名的不死族战术,尤其在对抗暗夜精灵方面效果极为显著,然而其对于操作的高要求,却使得许多小鸟们在盲目模仿高手的过程中屡屡受创,针对这个战术的基础我写了这篇贴子,希望对不死小鸟们有些许的帮助,当然其中存在的缺陷与不足还望前辈们多多指教。 (一)什么是天地双鬼 一般认为,所谓天地双鬼战术,是指在兵力搭配上,地面以食尸鬼、空中以石像鬼为主要战斗力量的一种不死族战术。通常情况下,这种战术需要三英雄的配合。而根据后期兵种的变化搭配,则可以细分为双光环型、骷髅海型、毁灭型、蜘蛛型天地双鬼。 (二)天地双鬼的特点 首先来看一下天地双鬼的能力—— 食尸鬼: 石像鬼: 训练费用——120黄金、2人口 训练费用——185黄金、30木材、2人口 攻击类型——普通 攻击类型——普通(对空)、穿刺(对地) 攻击方式——近战 攻击方式——近战(对空)、远程对地(对地) 地面攻击——平均13.5(17.5) 空中攻击——平均65.5(82) 空中攻击——无 地面攻击——平均19.5(27) 攻击间隔——1.30(1.05) 攻击间隔——1.4(对空)、2.2(对地) 射程——近战 射程——近战(对空)、300(对地) 护甲类型——重甲0(6) 护甲类型——无甲3(9) 移动速度——中等(270) /快(350) 移动速度——快(350) 生命——340 生命——410 生命恢复——邪恶光环、荒芜之地 生命恢复——邪恶光环、荒芜之地 训练地点——地穴 训练地点——地穴 训练时间——18秒 训练时间——35秒 白天视野——140 白天视野——140 晚上视野——80 晚上视野——80 需求——无 需求——坟场 单位级别——2 单位级别——2 通常情况下,天地双鬼具有以下优点: 1、高机动性。食尸鬼升级狂热以后,配合邪恶光环,在地面上,其速度几乎没有任何兵种可以与之匹敌,抛开攻击不谈,仅仅在气势上就有了压倒敌人的优势,尤其在面对蜘蛛和火枪手等对阵型要求十分严格的远程兵种时,狂热的食尸鬼群更成为迅速冲破其阵型的利器,在理论上就等于仅仅花费100金子、150木头和45秒的升级时间,买到了可以无限使用的加速卷轴。而石像鬼本身亦属于高机动性的空中兵种,虽然说空中兵种多数均具有较高的机动性,然而邪恶光环的加速作用却是UD得天独厚的一大优势。 2、造价低廉。食尸鬼是四大种族中除农民外造价最为低廉的兵种,120黄金,无需木材,18秒的建造时间,闲暇时间还可以集体采木,在最短的时间内囤积大量木材,而作为空中力量,石像鬼的造价也远远低于人族龙鹰与兽族飞龙,双地穴的情况下极容易量产成群的石象鬼。 3、低人口占用。食尸鬼与石像鬼均占用2人口,低人口占用意味着同样人口的情况下,较之高人口占用的敌人,你的部队十分容易达到海量(看看HUM爆直升机就知道海量的低生命值单位也极其恐怖),在气势上就先把敌人吓倒,而且减轻了经常回家补人口的烦恼。 4、攻击类型互补。通常情况下,远程兵种多为穿刺攻、中型护甲,而对于普通攻、重型护甲的食尸鬼而言,无论是从攻击上还是护甲上都会对远程兵种造成一定程度的克制,而重甲的食尸鬼惧怕魔法部队,尽管法师的攻击力并不高,但打在重甲单位身上的加成效果是不小的,尤其对于食尸鬼这种低生命值重甲单位来说更是如此,法师部队虽然脆弱,但一般藏在阵型的最后,要靠食尸鬼冲破阵型消灭他们并不容易,而空中穿刺攻的石像鬼则可以对无甲的法师部队造成有效的打击。 而同时,天地双鬼也存在着以下缺点: 1、低生命值。除暗夜精灵弓箭手以外,食尸鬼的生命值为初级兵种当中最低的,而石像鬼则是四大种族中生命值最低的空中单位(要有人非说虎妞那90血的无敌猫头鹰也算的话我也没办法……),低生命值单位作战需要依赖数量的优势,而针对这样大的数量,许多威力惊人的面杀魔法如暴风雪与火焰呼吸等等,可以在极短时间内消灭大量的低生命值单位。 2、对操作要求较高。通常情况下,生命值越低、护甲越脆弱、机动性越高的单位,对操作的依赖越大,要求越高。而天地双鬼的组合无疑要依赖高超的操作水准,才可以发挥其本来威力。具体内容我会在下面讲。 (三)天地双鬼的战斗流程 一、天地双鬼的开局。 通常情况下,此战术的开局并无特殊之处,基地训练2个侍僧,食尸鬼采木,选择一个侍僧先后分别建造地穴、通灵塔和祭坛(BCBZBA开局),还有一种开局的建造顺序是地穴、祭坛和通灵塔(BCBABZ开局),早放祭坛适合喜欢3陪、骚扰的玩家,而早放地穴则适合早期的MF。地穴建造完成以后立即开始训练食尸鬼,在英雄走出祭坛以前,可以派一个食尸鬼去做早期的侦察,其余的食尸鬼采集木材,在人口快要抵达上限时及时补造通灵塔(通常与上限相差4-6个人口时即应该补造通灵塔,食尸鬼训练时间为18秒,而通灵塔建造时间为50秒),另外尽可能早地放下商店。当英雄走出祭坛时,应该已经训练了4-5个食尸鬼,可以带着这些食尸鬼去进行初期的MF,最好能在食尸鬼集满210木材以后再出门,这样MF过程中黄金足够325时可以及时升级基地,至此,开局完成。最好为英雄购买一个巫术妖棍,即俗称的骷髅棒,来弥补早期兵力的不足。另外在MF或骚扰与压制过程中,不要忘记放下坟场,坟场对于天地双鬼来说也很重要,具体的内容我会在下面讲。 二、天地双鬼的早期战斗。 早期的所谓天地双鬼,其早期战斗,在操作方面,通常围绕着围杀与双线进行,在战略层面,通常围绕着MF、骚扰、双地穴爆狗RUSH等思路进行。 1、围杀。 在天地双鬼战术的早期,实际上只有食尸鬼这样一个兵种的存在而已,食尸鬼俗称小狗,至于它为什么叫做小狗我个人推测可能是因为它们象极了星际中虫族小狗Zergling,Zergling到了3本以后也会狂暴。作为不死族的玩家,每个人都要学会用狗,而用狗的艺术最突出的表现即是围杀。围杀的优势在于限制目标的行动,当攻击一个单位时,如果被攻击的对象逃跑,攻击它的单位只能在追逐中对它做断续的、零星的微弱攻击,而在追逐攻击的过程中,其他敌单位将对己单位造成持续的伤害,于是产生了围杀这个技巧——既然攻击目标,就要杀死目标,而不是单纯地浪费火力在追逐上。 一般来说,围杀需要满足下列条件: (1)速度优势。己方行动速度快过对方,对不死族来说,通常可以利用下列方法达到:邪恶光环、食尸鬼狂热、冰塔减速、霜星减速、冰甲减速、睡眠等等。当速度不及对方时,连追都追不上他,谈何围杀? (2)数量优势。通常来讲,数量越多的单位,围杀目标越容易,而围杀的单位下限通常为4-5个(视围杀目标的碰撞体积而定),一般来说6个单位即可以进行围杀了。而有时可以利用地形上的优势,如树木、深水、高地、建筑等,达到以较少单位进行围杀的目的,如酒馆门口3狗围堵中立英雄。 一般来说,围杀的步骤如下:不攻击单位,直接移动至目标后方,在移动过程中,食尸鬼将形成一个不规则形状的方阵,这时候可以用手动来调整位置不是很好的食尸鬼,当围杀目标恰好处在方阵当中时,按下M健,鼠标左键点击目标,则食尸鬼开始从四面八方向目标靠拢,迅速重复这个步骤,直至目标的行动被完全限制,再进行攻击。 被围杀的单位一般很难脱身,所以可以看到许多低等级英雄面临围杀时不惜使用回城卷轴以保性命。反过来看,正因为英雄的地位十分重要,所以对方只要操作过硬经验老道,通常不会轻易被小鸟们围死英雄,这个时候可以考虑更换围杀目标。举例来说,当ORC首发FS,率领3个大G来到你面前时,不要贸然去围杀FS,FS是远程英雄,围杀难度比近战英雄要大,可以考虑佯装要围FS,在他惊慌之际转而去围位置不好毫无防备的大G,围住FS,很可能围不死,当他只剩最后一点血时回城了,一个药膏喝下去又是一条好汉,而大G造价比1级英雄贵,又不能回城,建造时间也较长,所以围大G也是不错的选择。许多时候,恐惧魔王是一些玩家早期战斗的首选,睡眠技能可以有效地提高围杀的效率,象刚才所述的情况,也可以睡住FS再围大G,运气好的话甚至可以围死两个,如果运气不够好,围死一个以后再去围FS也会有些收获的。 总而言之,初学UD的小鸟们要记住,是UD就要会用狗,会用狗就要会围杀,围杀应该成为每个UD的本能。 2、双线操作。 一般来讲,双线操作是指单(双)英雄骚扰或三陪,后方单兵进行MF的作战技巧。在战斗的早期,看一个玩家水平高低,很大程度上就是看他围杀和双线的技巧如何。 UD最常见的双线作战是DK前方三陪或屠农,小狗进行MF。初学双线的小鸟们可能觉得两头难以兼顾,笨拙的双线经常导致英雄红血落荒而逃,狗也死了一大片。实际上分开来看,前方的DK——当你的双线还不纯熟的时候——不需要真的去杀什么单位或抢什么东西,你所要做的,只是监视他的行动,仅此而已,而主要精力放在后方,有经验的玩家双线MF都喜欢选在晚上,可以先将目标围死了再打,对操作不放心的话,先让每只小狗出门前都扛上一块木头,给它们编队,当发现某一只小狗血量减少时,选中它,按下E键,它会自己扛着木头跑回家,如果还不放心,干脆升级吃尸体的技能,让重伤的小狗回家吃饱,需要特别注意的是,食尸鬼这样的低生命值单位,绝对不能等到红血了再往回拉,血黄了就需要撤。而当渐渐习惯这样的操作时,DK可以适当地抢抢经验,杀几个红血敌人,抢点宝贝什么的,双线其实只是如此简单(别用崇敬的眼光看着我,实际上我……也不会……),只是不要忘记在适当的时候去收集MF掉落的宝物。然而如果实在实在没有把握,那还是老老实实地单线吧。 3、RUSH。 通常比较害怕近点RUSH的种族是NE,而UD的RUSH,主要是围绕卖回城双地穴爆狗展开。这种RUSH一般见于同族大战或针对NE的战斗,同族战时许多人喜欢选择LICH作为首发英雄,霜之新星对于脆弱的食尸鬼来说,其杀伤力是毁灭性的。而要RUSH的彻底,最好卖掉回城,因为虽然UD有钱双兵营爆狗,但在初期并没有足够的经济能力建造第二兵营,卖掉回城的钱则可以用来建造第二个兵营,另外,如果RUSH失败,即使回城,也不会使战局有什么改观,双兵营RUSH和TR一样,是没有后路的战术,RUSH失败基本就等于全盘皆输,如果想要为自己留有后路,则RUSH的强度必定不足,鱼与熊掌不能兼得,在经济相对匮乏的战斗初期,要海量的兵力就必须牺牲科技。RUSH是我个人不推荐的战法,首先它风险太大;其次现在许多召唤类英雄如FL、兽王等等,利用廉价的召唤生物消耗你用钱换来的兵力,另外一两个位置好的防御塔对UD脆弱的小狗部队造成的威胁也不算小(我没提ORC地洞因为目前还没听说谁敢用小狗去RUSH ORC的……),作为UD在这样的情况下RUSH并不太值得;最后,RUSH必然造成晚升2本甚至没有机会升2本(还有些猛人压根就没打算升什么2本),当对方2本一好,中级兵种尤其是空军,哪怕数量很少,对地面上毫无对空能力的小狗部队也是很大的威胁,UD二本晚于对方,无论是蛛网还是石像鬼,其出现必定晚于对方空军,更何况现在许多人RUSH起来什么都忘了连坟场都忘了造,到头来蜘蛛也没有石像鬼也没有……制空权落入对方的掌控之中,起初只是零星空军,而当UD起了零星空军以后,对方空军已经基本成型,压下来以后UD很难翻盘。总而言之要想RUSH还需三思而后行,毕竟它实在是没有什么技术含量。 三、天地双鬼的中期战斗。 UD是一个对三本严重依赖的种族,许多兵种在三本之前发挥不出其本来的威力,天地双鬼中的小狗就是其中之一,而且UD有名的三英雄组合也需要三本,这就决定了使用天地双鬼战术的UD必须速攀三本,2本以后没有停滞,直接向三本爬。这个时期的UD,是十分脆弱的。在脆弱的中期,需要注意以下几点: 1、MF提升英雄等级。 UD的英雄比任何种族的英雄都需要等级,UD这个种族强在英雄,MF可以得到经验值与少量金钱,而最重要的是宝物的收集。MF的本意为Magic Found,寻宝,想象一下,如果LICH身上带了一大一小两个蓝瓶,外加一根偷魔杖,DK带了一大一小两个绿瓶,外加一个大无敌,再掉个治疗守卫死亡之书什么的,遭遇这种部队简直就是噩梦…… 对MF似乎没有必要多说,这是十分基础的东西,而需要说的一点是MF时不幸被抓的情况。当MF744大海龟这种地方时,总是让人提心吊胆,惟恐敌人从某个阴暗的角落跳出来,在中立生物(虽然名为中立生物见谁打谁但我个人总觉得它们似乎比较喜欢打我而从来就没帮我打过敌人)的协助下,对你进行丧心病狂惨无人道的猛烈攻击,最让人郁闷的是你费了九牛二虎之力将野生怪物殴至红血,他却不费吹灰之力将怪物解决,并且在光天化日朗朗乾坤之下,公然抢走那本应属于你的宝物……碰上这样的情况,试问谁不郁闷?谁不气愤?为了将MF被抓时的损失减至最低,需要注意以下几点: 首先,尽量将怪物引出一段距离再消灭,尽量保证后方是安全的,当野生怪物后方是死路时,绕至其后方进行MF,如果MF被抓,使野生怪物夹在敌人与自己之间,而不是让自己夹在野生怪物与敌人之间腹背受敌;其次,当情况不利决定回城之时,如果地上有掉落的宝物,则副英雄向宝物所在处靠拢,争取将宝物带走,如果阵型混乱,实在无法带走宝物,就将其A掉,不要留给敌人使用;再次,要记得趁火打劫,反正已经被抓了就不要惊慌,闪一下ALT看看敌人有没有倒霉的红血单位,A死一个再走;最后,如果你背后紧靠着商店、生命之泉和魔法之泉这样的中立建筑,不要贸然决定回城,在商店门前,买无敌、买群补、买加防都十分方便,情况并不一定对你不利,衡量一下再做决断。 2、制空权与战斗主导权的掌握。 先举一个例子来辅助说明,当UD对抗NE时,经常可以看到少则2只多则半队的石像鬼跑到NE基地去骚扰采木的农民,这时候,在其空军还没有出现的情况下,大多数NE会考虑回防(要是单纯暴HT的NE,对空力量为零当然就不需要回防了……),而NE的回防当然仅仅是暂时的,他会考虑两条路:一是出空军,二是造防御。而无论NE怎样选择,必须让主力部队在家呆上一段时间,出空军或造防御都需要起新建筑,如果部队不在家,在石像鬼的攻击下,新建筑几乎没有可能造起来,这样,在NE守在基地的时间内,UD可以放心MF,不必担心被抓,甚至有些UD会选择在这个时期扩张。实际上此时的NE,正在被UD牵着鼻子走,因为有经验的UD,已经开始升级蛛网,预备出少量蜘蛛对抗NE的空军了,无论选择出空军或是造防御,NE都在不知不觉地按照UD的意图分配自己的资源,即UD,已经掌握了战斗的主导权。 反过来看,如果NE先发制人,在石像鬼到达基地之前就摆下防御,则情况就完全反过来了。首先石像鬼对农民的骚扰并不一定能够成功,顶着搬石头砸人的大树的攻击,血少的石像鬼是坚持不了多久的,骚扰的效果未必理想。 而为什么没有考虑NE先起空军的问题,则是因为UD的石像鬼无需新建筑即可建造,这一点十分重要。除UD外的其他三个种族,其空中力量都是需要新建筑的,而这个新建筑依赖2本,假设同时升上2本(一般UD的2本还要比其他种族早些),当其他种族生产空军的建筑完成时,单BC的UD应该已经训练出了2个石像鬼,双BC又有足够资源的UD理论上可以训练出4个石像鬼(理论上而已,一般情况下2本刚好的UD根本没那么多钱),这2个石像鬼很重要,UD要掌握制空权,很大程度上依赖着这2个石像鬼。 还是以NE为例,当第一只角鹰训练完成时,UD应该有3只左右的石像鬼,在DK的死亡缠绕辅助下,3只石像鬼对抗一只角鹰问题应该不大,就这样,按照理想的情况,角鹰出一只消灭一只,制空权将完全掌握在UD的手中。然而这毕竟是理想的情况,有一定水平的NE不可能让UD这样趁心如意,有经验的NE会巧妙地藏好角鹰,和你照面的时候却一来就是黑压压一群,这时候的制空权由两家共同掌握,碰到空军成型的NE,在制空权上可能你并没有劣势,但是很显然地,你的优势已经没有了。 3、华丽的天地双鬼仰仗于操作的艺术。 天地双鬼当中作为地面主力的食尸鬼属于肉搏兵种,许多人认为与蜘蛛相比,狗不需要过多操作,只要A敌人身后的空地就可以了,实际上这种想法极其错误,狗属于低生命值的兵种,生命值越低,对操作的依赖性也越高。小狗在A敌人身后空地的同时,需要注意哪一只,或者哪几只小狗,正在遭受敌人2-3个单位的联合攻击,传统操作教程写明在编队的血槽中观察血量的减少来选取单位撤离战场,而实际操作中,在两队肉搏单位交战时,由于没有齐射的因素存在,血槽所反映的体力情况并不明显,这种时刻既要观察编队中的血量槽,同时也要注意大屏幕,当看到一个单位正被多个单位攻击时即将其撤回。象兽族步兵和女猎手这样的单位,一般在红血或黄血时将其拉回基地,而象小狗则必须在血量开始变黄时调整其位置,一些战术文章说小狗红血再撤简直就是误人子弟,红血蜘蛛还有可能,但是红血的小狗已经很难再撤回基地了,没等跑出对方的射程就挂掉了,这种时候(没有用C补血的可能的情况下)与其让它撤退不如让它力战而死。有些操作变态的高手在面对远程兵种时,几乎是你打哪只他拉哪只——尽管那只狗几乎没有损失多少血量——后撤一段距离之后又跑回来参加战斗,到头来你的远程兵全死没了他都没有损失,这样的人将受攻击的目标后撤,其目的并不在于保护目标,而在于打乱你的攻击顺序,让远程部队所依赖的齐射变为无序的散乱攻击,这个打一下那个打一下,最后哪只都没有打死,而自己无论是攻击类型上还是护甲类型上都被肉搏部队克得死死的,从而惨败而归。当然操作达到这种程度的高手毕竟是凤毛麟角的少数人,小鸟们虽然也许一辈子都达不到这样的成就,至少可以向这个目标努力靠拢。 而石像鬼依赖更高水平的操作。在战斗中,石像鬼的位置十分重要,太靠前,则容易成为火力集中的目标,象火枪和AC这种穿刺单位,打无甲的石像鬼几下就是一个;太靠后,根本起不到任何作用,要知道石像鬼的对地射程只有300,空中攻击也是近战。这种情况下,则需要充分利用地形上的优势,尽可能地让石像鬼靠近树木、高地、悬崖、深水等地面部队难以攻击的地方,一旦发现敌人有攻击石像鬼的动机,立刻逃向他火力的死角,当敌人放弃攻击石像鬼时,再迂回出来点射敌队伍中的无甲单位——这个时候法师当然是首选,按照这个步骤不断重复,不断令敌人在“攻击食尸鬼还是石像鬼还是英雄”这个问题上疲于奔命,使敌人的目标不定化,攻击无力化,齐射散乱化。 当敌人形成海量空军时,可以考虑训练少数蜘蛛,使得食尸鬼的作用更大,如果地面部队已经让你疲于应付,可以试试用三只左右的蜘蛛手动网下和蜘蛛同等数量的敌空军,然后利用速度上的优势撤出一段距离,不需要太大,离开被网空军的射程即可,如此打乱对方空军的阵型,这对于以齐射为主的空军如角鹰兽骑士等,是比较好用的办法。 4、天地双鬼必备物品——群补卷轴。 基地到3级以后,我个人认为UD家的商店最为厚道,因为它卖群补,而天地双鬼的战术最需要的物品即是群补。兵种的脆弱性我在前面已经提过,很容易一队小狗很快被对方殴至红血,一队天鬼被熊猫喷火以后,纵然没死也不敢和对方正面冲突了,这时的部队基本等于残废,此刻如果使用一个群补,则又是一队好汉(好狗?)。有人说群补很贵,然而对高手来说它并不贵,比起全军覆没来,两三个群补的钱还是便宜得很,如果没买群补导致部队尽数被灭,即使你有足够的钱再造,时间也不可能允许,敌人不会给你喘息的机会一定大举进攻你的基地了,造兵是需要时间的,而时间也是资源,从某种意义上来说,时间甚至是比黄金与木材更重要的资源。 顺便提一下,购买群补的时候尽量先买走地精商店的群补,最后再考虑家里的商店,最好一次买两个,这样你的敌人在一定时间内就没有办法在这个地精商店再次购买到群补。 (四)天地双鬼的后期战斗 根据英雄的选择以及后期兵种的变化,后期的天地双鬼战术可能产生以下变化: 1、双光环天地鬼。 ROC时代流行的双光环食尸鬼,可以看成是当今天地双鬼战术的雏形。狂热的狗加上3级邪恶光环,其移动速度根本无人可比,光是看这架势就足以吓人一跳,而脆弱的食尸鬼在吸血光环的作用下,生命值可以得到有效的补充,对空的石像鬼属于高机动高攻单位(高攻指对空的普通攻击),吸血光环作用尤其明显。另外,脆弱的天地双鬼十分惧怕面杀魔法,碰到冰火两重天、HUM的CW双面杀、LICH的高级NOVA和熊猫的火焰呼吸等战术时,无论数量多少,一不小心都在瞬间变为炮灰,此时恐惧魔王的睡眠技能可以有效的抑制对方英雄面杀魔法的施放,虽然睡眠有时限,也可以被A醒,但是上述的那些恐怖魔法,哪怕让他们少用一次都是好的。 2、毁灭天地鬼。 听起来十分霸气的名字,实际也非常好用。天地双鬼是机动性极高的兵种组合,而对于高机动性的单位,本身机动性如果不如它们,就需要想办法克制它们的机动性了。克制机动性的办法也很多,如女巫的缓慢、熊猫的酒雾等等让人听了就觉得十分讨厌的技能,三本以后,UD拥有四大种族中最强的驱散单位——集驱散、魔免、高机动性、高攻击力(有魔的情况下攻击力直逼暗夜奇美拉)、高生命值于一身的毁灭者。当巨大的雕像轰然倒塌,毁灭者展开翅膀飞上高空的一刻,许多人都会感到不寒而栗。面对这样一个恐怖的不断吞噬魔法的单位,大师级的女巫、牧师、熊德、风德、萨满……其作用就只剩下为毁灭者提供源源不断的魔力,进行更加有效的杀伤。 3、骷髅天地鬼。 这个类型的战术源于古老的战术骷髅海,相信许多人都有过侦察不力结果淹死在汹涌澎湃的骷髅海中的悲惨经历。而UD由于需要直攀三本,2本以后还需要建造屠宰场,这样就很难再有足够的资金建造诅咒神庙了,至于根本不攀三本只带少量蜘蛛一堆法师半队车子的那种是纯骷髅海这里先不谈,所以这种战术一般比较少见,即使勉强出了法师,石像鬼的数量就必定不足。当然不排除部分操作BT的玩家,前期几乎是零伤亡,少死一只石像鬼,诅咒神庙的钱就出来了。这里顺便说一下,小鸟们选择了UD就等于选择了贫穷……要想富就练操作吧,少死一个兵就省出一小笔钱,UD的钱就只能从操作里面省了……而骷髅型天地鬼未必非要出亡灵巫师不可,三英雄人手一根骷髅棒的时候,就和有3个老头的召唤骷髅的效果差不多,看CD时间一到就点骷髅棒,这样做既不用造神庙,也不用造老头,敌人没办法杀死亡灵巫师得到什么经验,使用骷髅棒也不需要补魔力(老头需要车子补魔),如果出黑暗游侠的话那么简直就和噩梦来临差不多,黑暗游侠召唤的骷髅比普通骷髅要结实多了…… 4、憎恶天地鬼。 这是天地双鬼战术到后期的一个变种,越是脆弱的部队越是需要肉盾,憎恶是不错的肉盾,体积也够大。肉盾的意义在于让对方打也不是,不打也不是,打的话,浪费时间浪费火力,不打的话它破坏阵型,攻击力也不见得多低,最重要的是体积大,把路堵个严严实实,大有“从我的尸体上踏过去吧”的架势。许多技能克制肉盾,如变羊、放逐、飓风等等,所以要出憎恶的话最好搭配毁灭者,这样才能更大程度地发挥肉盾的作用。 综上所述,我个人所知道的天地双鬼战术所需要掌握的基础知识和基本要领就这么多,这种战术极难掌握,这个贴子献给初学UD的小鸟们,希望小鸟们多多练习,多多提高,早日长大,早日变强
2023-08-01 04:16:071

cosplay是什么意思

cosplay是角色扮演的意思。cosplay简称扮装或者cos。一般指利用服装、饰品、道具以及化妆来扮演动漫、游戏中的角色。玩扮装的人则一般被称为扮装者。cosplay指模仿,装扮虚拟世界的人物角色,由此,在网络上衍生出了新的含义,往往被用来形容假扮某类人的人。以现今的cosplay而言,其形式及内容一般是指利用服装、小饰品、道具以及化装来扮演acg中的角色或是一些日本视觉系乐队以及电影中的某些人物。从这里可以看出在定位上cosplay包含了相当广阔的发挥空间,甚至可以说只要是有cosplay在的地方,这一领域便绝对就是当今青少年流行文化的主流。cosplay起源最初的起源大家一般比较认同的是将扮装的发源地定位于日本,当然如果这是以现时代扮装理念为基准的话确是可以如此而言。但是如果从广义上来说,动画扮装的真正发源地绝对是位于西半球的美国,甚至说如果真要探讨起扮装原始形态的话,笔者可以毫不迟疑的告诉你扮装最早的出现是在公元元年之前的数个世纪之中。因为不论是公元前1000年左右就已存在的希腊祭祀们的装扮,或是其后共同创作了两部伟大希腊史诗《伊利亚特》和《奥德赛》的那群活跃于公元前8世纪的伟大游吟诗人们,他们实际上都是在扮演着别人的角色。前者引变为后世的先知、先见,成功的扮装了神之使徒的存在,而后者则如同是现今舞台话剧的鼻祖,出神入化的扮装了那些可歌可泣英雄们的事迹。事实上,扮装所要包括和装扮的涵义不仅仅只是指一种外表上的形象化,更重要的是去扮装人的内心。
2023-08-01 04:16:001