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qt中clicked和toggled的区别

2023-07-10 19:19:32
共1条回复
南yi
共同点是:当点击按钮时,状态信号都会被发送。

不同点:

clicked: this
signal is not emitted if you call setDown,setChecked() or
toggle().

toggled:this may
be the result of a user action, click() slot activation ,or because
setChecked() was called.

显而易见,toggled要比clicked更容易触发。clicked()有的toggled有,而toggled有的,clicked()却不一定有!

另外
toggled和trigger区别

toggle在实物上有开关的意思,这跟我们物理实验用的开关是一回事,两头表示两个状态:合上和断开。于是更准确的译法应该是切换,在两个状态间进行转换。在Qt中,checkable按纽或是图标的槽函数应该用toggled()事件来激活,也是这个道理。
trigger更有触发的意思。这个单词还有另一个意思就是板机,枪械上用来发射子弹的那种。我们很容易想到板机是没有开/关两种状态的,不能说让它一直关上,一直发射子弹,至少在造词时并没有想到激光武器一说,我想如果针对激光武器,那么要fire的时候应该就不是扣trigger了,而是按toggle。在Qt中,一般的按纽(uncheckable)的激活方式即是triggered()。

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2023-07-10 08:09:421

c语言 为什么下面语句会触发 triggered a breakpoint

因为你的指针变量e已经被上一句e = &i;给覆盖了,这个时候再free(e),程序根据e找不到被malloc的内存,所有就错了呗。
2023-07-10 08:09:492

clicked()、triggered()、activated()区别

button中没有triggered()、activated()
2023-07-10 08:09:561

C语言 epoll和多线程有什么关系?

epoll处理并发事件,多线程处理并发业务
2023-07-10 08:10:064

Matlab的Simulink里,怎么样做到只对数据采样一次,然后永久保持给后极作为比较使用?

只采集一次,涉及到什么时机采集的问题。可以用采集条件作为控制输入,使用触发子系统(Triggered Subsystem)或使能子系统(Enabled Subsystem)实现。如果需要,还可以使用Memory模块实现自锁,也就是说,一旦达到某种状态,就一直保持该种状态不变。查阅一下上述几个模块的文档,相信就能解决了。如果还有困难,请把要求描述更清楚一点,我再帮你做个示例。
2023-07-10 08:10:141

matlab中ode45如何设置多个触发事件

操作的正反转
2023-07-10 08:10:232

【求翻译,求翻译,求大神翻译】

Glassik WalkthroughGlassik演练Jan 20 at 7:49pmHi all, 一月二十日晚上七时四十九分,Requested by several players, here is a walkthrough for Glassix.Il keep it根据几个玩家的要求,这里是Glas6的演练。我留着它。updated when new versions add more content.新版本添加更多内容时更新。"Week days" means Monday to Friday.“周日”指周一至周五。When an hour is given without range, it means the whole hour will work. For如果一个小时没有距离,这意味着整个小时都会工作。对于。example, 8AM means from 8:00 to 8:59.例如,上午8点到8点59分。When a time range is given, the upper part is not included. For example, 2AMto 4AM means from 2:00 to 3:59.当给定时间范围时,上部不包括在内。例如,凌晨2点到凌晨4点意味着从2:00到3点59。"Events" are triggered when entering location. "Commands" are triggeredwhen talking to a girl and giving her orders.“事件”在进入地点时触发。“命令”是在与女孩交谈和下达命令时触发的。Some locations have special furniture which unlock new commands.有些地方有特殊的家具,可以打开新的命令。Extra girls have limited interactions and will be fully playable in future updates.额外的女孩的互动有限,将在未来的更新中完全可以播放。翻译不易,看完记得采纳,Thanks
2023-07-10 08:10:301

在引入jquery库的情况下,js调试怎么快速跳出jquery,进入自己写的js函数?

不知道你用什么调试工具,一般的都支持debugger断点,比方说debugger;//断点1 进入调试 f11就近jquery内部了 不太方便调试,我们可以直接F5跳到断点2$("#myBtn").click(function(e) { debugger;//断点2 alert("大家好"); });
2023-07-10 08:10:392

翻译啊~急~

太太太太长了
2023-07-10 08:10:553

新视野大学英语读写第四册第十单元答案???

新版新视野大学英语读写教程第四册unit10答案unit 10Section A VocabularyIII.1. incorporate 2. triggered 3. perspectives 4. cultivating 5. confine 6. capacity 7. Controversial 8. consciousness 9. recommend10. application11. sort 12. maturity 13. mechanisms 14 adaptiveIV1. to 2. at 3. to 4. aside 5. to 6. on/onpon 7. through 8. of 9. of 10. inV. 1.F 2.J 3.G 4.D 5.M 6.A 7.K 8.C 9.O 10.HCollocation .1. constant 2. enormous 3. blood 4. intense 5. work6. economic 7. international 8. personal 9. external 10.militaryWord BuildingVII.1. multicolored 2. multicultural 3. multimedia 4. multinational 5.multidimensional 6. multimillion 7. multiparty 8. multipurposeVIII.1. semi-permanent 2. semi-final 3. semi-automatic 4. semi-detached5. semi-darkness 6. semi-official 7. semi-skilled 8. semi-retiredsentence structureXI1. 无论你的智商有多高,你的看法都受到个人经历的局限,因此要学会吸纳他人有用的观点。(no matter...) No matter how high your IQ is, your view is limited by the experience you have had and so you should learn to incorporate the useful perspectives of others. 2. 这个游戏非常有趣,他们谁也没有注意到时间的流逝。(Use inverted order of "so... that...";take note of) So interesting was the game that none of them took note of the passage of time. 3. 我一直在整理这些旧文件,看看哪些有用,哪些需要扔掉。(sort through) I"ve been sorting through these old documents to see which are useful and which can be thrown away. 4. 随着年龄越来越大,你应该考虑未来的计划。(reflect on) As you get older you should reflect on future plans. 5. 他在演出中的亮相简直是个轰动。(nothing less than) His appearance in the show was nothing less than a sensation. 6. 他们每个月都从工资中留出一笔钱,用于孩子将来的教育。(set aside)Every month they set aside a particular amount of money from their salary for the sake of their kid"s education in the future. XII 1. No matter how promising your situation, or how creative you can be, hard work is always essential to your success. 无论你的情况多么充满希望,无论你有多大的创造力,努力工作对你的成功总是必需的。 2. So strong are his first impressions that sometimes they defy revision even when many other people think differently. 他留下的最初印象如此之强烈,有时甚至当许多其他人不这么认为时,这些印象也无法改变。 3. Our aim is nothing less than to make China the best trained and educated nation in Asia. 我们的目的就是要使中国成为亚洲接受培训程度和教育程度最高的一个国家。 4. On international relations China would continue to develop relations with foreign countries in seeking a favorable international environment for its reform and to make contributions to world peace and development.在国际关系方面,中国将继续发展与外国的关系,寻求一个对自己改革有利的国际环境,继续对世界和平和发展作出贡献。 5. I"ll keep at it—whatever the challenges might be—and never give up until I achieve success.不管会面临什么挑战,我都会坚持,永不放弃,直到取得成功。6. The latest research seems to imply that without the software of emotional maturity and self-knowledge, the hardware of academic training alone is worth less and less.最新的研究似乎表明,缺乏情感成熟和自我了解这一软件,纯学术培训这一硬件越来越没有价值。 XIII.1 .B 2. A 3. C 4. A 5.D 6.C 7.B 8.A 9. D 10. C11,A 12.D 13.C 14.B 15.C 16.D 17.D 18.C 19.A 20.B
2023-07-10 08:11:241

汽车专业英语翻译

1.HIradfanrly:散热器风扇高速继电器2.hornrly:喇叭继电器3roomlrly:室内灯延时继电器4strly:转向报警继电器5ecupowerrly:ECU动力继电器6airconrly:空调继电器7foglrly:雾灯继电器8fuelpumb:燃油泵9rrfoglamp:右前雾灯希望能对你有所帮助。
2023-07-10 08:11:345

Asus Anti-Surge was triggered to protect system from unstable power supply unit!

  出现这种提示是由于玩游戏时电脑用电电流增大,电脑系统启动的自我保护程序。  中文含义为:华硕防电涌程序已启动,以保护系统免收不稳定电流的损害!  Anti-Surge防电涌保护技术,是在电压电流突然增大的情况下才起作用保护电路, 这个功能不会造成电脑死机。
2023-07-10 08:11:512

epoll的两种触发模式ET、LT

epoll的两种触发模式分别是ET(edge trigger)边缘触发和LT(level triggered)水平触发。 epoll的默认触发模式是LT,select、poll都是LT触发。 缓冲区只要有数据未读就会导致epoll_wait返回。 上次读数据未读完仍会导致epoll_wait返回。 水平触发模式下阻塞和非阻塞并没有什么区别,因为没有可读时间就绪的话epoll_wait不会返回。 缓冲区出现新未读数据才会导致epoll_wait返回。 上次读数据未读完不会导致epoll_wait返回。 边缘触发模式下事件就绪只会通知一次,为了保证数据成功被读取或写入,在非阻塞模式下,采用循环的方式进行读写,直到完成或出现异常时退出。 如果不采用循环的方式进行读写,就会造成数据读/写不完的情况,因为下一次再调用epoll_wait就不会再通知了,所以职能采用循环的方式进行读写。但是如果尝试采用循环的方式进行读写,则会造成永久阻塞。 造成阻塞的原因只有没有数据可读/可写,在非阻塞模式下出现没有数据可读/可写可以返回相应的错误信息设置errno(EWOULDBLOCK),但是阻塞模式就会进入阻塞状态,而处理的该fd永远也不可能再有可读数据了,所以就被永久阻塞了。
2023-07-10 08:11:591

steam上买的Age of Empries 2:HD Edition玩不了

请问你解决了吗 我的也是这样
2023-07-10 08:12:083

求林肯对斯托妇人说的"你就是那个引发一场革命的小妇人"的英文说法

That triggered a revolution you"re a small woman
2023-07-10 08:12:163

如何看懂iOS的Crash报告

本文分析了一份标准的iOS应用程序的Crash报告,它通常由以下6个部分组成。1. 报告头(Header)报告头包含了应用程序以其运行环境的一些基本信息,下面是报告头的一个例子。复制代码Incident Identifier: E6EBC860-0222-4B82-BF7A-2B1C26BE1E85CrashReporter Key: 6196484647b3431a9bc2833c19422539549f3dbeHardware Model: iPhone6,1Process: TheElements [4637]Path: /private/var/mobile/Containers/Bundle/Application/5A9E4FC2-D03B-4E19-9A91-104A0D0C1D44/TheElements.app/TheElementsIdentifier: com.example.apple-samplecode.TheElementsVersion: 1.12Code Type: ARM (Native)Parent Process: launchd [1]Date/Time: 2015-04-06 09:14:08.775 -0700Launch Time: 2015-04-06 09:14:08.597 -0700OS Version: iOS 8.1.3 (12B466)Report Version: 1052. 异常代码(Exception Codes)异常代码可能包含异常类型(Exception Type)、异常子类型(Exception Subtype)、处理器的详细异常代码(processor-specific Exception Codes)和其它能提供更多Crash信息的字段,最后一个字段列出了触发Crash的线程索引。下面是异常代码的示例。复制代码Exception Type: EXC_CRASH (SIGABRT)Exception Codes: 0x0000000000000000, 0x0000000000000000Triggered by Thread: 0常见的异常类型有以下几种。a. Bad Memory Access [EXC_BAD_ACCESS // SIGSEGV // SIGBUS]此类型的Excpetion是最常见的Crash,通常由访问了无效的内存导致。SIGSEGV:访问了无效地址,没有物理内存对应该地址,通常由于重复释放对象导致。SIGBUS:总线错误,与 SIGSEGV 不同的是,SIGBUS 访问的是有效地址,但总线访问异常,通常是访问了未对齐的数据。SEGV:代表无效内存地址,比如空指针、未初始化指针、栈溢出等。b. Abnormal Exit [EXC_CRASH // SIGABRT]进程异常退出,造成Crash通常是因为未捕获到Objective-C/C++的异常。SIGABRT:收到Abort信号退出,通常Foundation库中的容器为了保护状态正常会做一些检测,例如插入nil到数组中等会遇到此类错误。c. 其它异常类型有些异常类型没有被命名,以16进制数字表示。0xbaaaaaad:意味着该Crash log并非一个真正的Crash,它仅仅只是包含了整个系统某一时刻的运行状态,由用户同时按Home键和音量键触发。0xbad22222:当VoIP程序在后台太过频繁的激活时,系统可能会终止此类程序。0x8badf00d:程序启动或者恢复时间过长被watch dog终止。0xc00010ff:程序执行大量耗费CPU和GPU的运算,导致设备过热,触发系统过热保护被系统终止。0xdead10cc:程序退到后台时还占用系统资源(如通讯录)被系统终止。0xdeadfa11:程序无响应用户强制退出。当用户长按电源键,直到屏幕出现关机确认画面后再长按Home键,将强制退出应用。我们可以合理认为用户这么做的原因是应用程序没有响应。3. 应用详情(Application Specific Information)有些Crash出现时,会产生额外的信息,这些信息能帮助用户更好地了解应用程序终止时的运行环境。示例如下。复制代码Application Specific Information:MyApp[134] was suspended with locked system files:/private/var/mobile/Library/AddressBook/AddressBook.sqlitedb4. 回溯(Backtrace)这部分列出了发生Crash时线程的调用栈。示例如下。复制代码Thread 0 name: Dispatch queue: com.apple.main-threadThread 0 Crashed:0 TheElements 0x0000000100063fdc -[AtomicElementViewController myTransitionDidStop:finished:context:] (AtomicElementViewController.m:201)1 UIKit 0x000000018ca5c2ec -[UIViewAnimationState sendDelegateAnimationDidStop:finished:] + 1842 UIKit 0x000000018ca5c1f4 -[UIViewAnimationState animationDidStop:finished:] + 1003 QuartzCore 0x000000018c380f60 CA::Layer::run_animation_callbacks(void*) + 2924 libdispatch.dylib 0x0000000198fb9368 _dispatch_client_callout + 125 libdispatch.dylib 0x0000000198fbd97c _dispatch_main_queue_callback_4CF + 9286 CoreFoundation 0x000000018822dfa0 __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ + 87 CoreFoundation 0x000000018822c048 __CFRunLoopRun + 14888 CoreFoundation 0x00000001881590a0 CFRunLoopRunSpecific + 3929 GraphicsServices 0x00000001912fb5a0 GSEventRunModal + 16410 UIKit 0x000000018ca8aaa0 UIApplicationMain + 148411 TheElements 0x000000010005d800 main (main.m:55)12 libdyld.dylib 0x0000000198fe2a04 start + 0Thread 1 name: Dispatch queue: com.apple.libdispatch-managerThread 1:0 libsystem_kernel.dylib 0x00000001990e0c94 kevent64 + 81 libdispatch.dylib 0x0000000198fc897c _dispatch_mgr_invoke + 2722 libdispatch.dylib 0x0000000198fbb3b0 _dispatch_mgr_thread + 48...5. 线程状态(Thread State)这部分列出了发生Crash的线程的状态,即寄存器和寄存器的值。示例如下。复制代码Thread 0 crashed with ARM Thread State (64-bit): x0: 0x0000000000000000 x1: 0x0000000000000000 x2: 0x0000000000000000 x3: 0x00000001995f8020 x4: 0x0000000000000000 x5: 0x0000000000000001 x6: 0x0000000000000000 x7: 0x0000000000000000 x8: 0x0000000000000000 x9: 0x0000000000000015 x10: 0x0000000199601df0 x11: 0x0000000b0000000f x12: 0x00000001741e8700 x13: 0x000001a5995f5779 x14: 0x0000000000000000 x15: 0x0000000044000000 x16: 0x00000001989724d8 x17: 0x0000000188176370 x18: 0x0000000000000000 x19: 0x00000001701dda60 x20: 0x0000000000000001 x21: 0x0000000136606e20 x22: 0x00000001000f6238 x23: 0x0000000000000000 x24: 0x000000019cc640a8 x25: 0x0000000000000020 x26: 0x0000000000000000 x27: 0x0000000000000000 x28: 0x000000019cc577c0 fp: 0x000000016fd1a8d0 lr: 0x00000001000effcc sp: 0x000000016fd1a860 pc: 0x00000001000effdc cpsr: 0x600000006. 二进制映像(Binary Images)这部分列出了当Crash发生时被装载进进程内存空间的依赖库或者模块。示例如下。复制代码Binary Images:0x100058000 - 0x10006bfff TheElements arm64 <77b672e2b9f53b0f95adbc4f68cb80d6> /var/mobile/Containers/Bundle/Application/CB86658C-F349-4C7A-B73B-CE3B4502D5A4/TheElements.app/TheElements参考资料a. 《Understanding and Analyzing iOS Application Crash Reports 》,iOS Crash分析官方文档b. 《iOS Crash文件的解析(一)》,一篇中文博客
2023-07-10 08:12:251