SqlParameter[]怎样添加SqlParameter元素?

10016312022-10-04 11:39:541条回答

SqlParameter[]怎样添加SqlParameter元素?
只能
SqlParameter[] cmdParms = new SqlParameter[]{new SqlParameter("@Name",SqlDbType.NVarChar),new SqlParameter("@Password",SqlDbType.Int)};
这样添加吗?
SqlParameter[]怎么没有add方法,不能声明一个SqlParameter元素,定义后再添加到数组里吗?
理解不能,什么字符串?大括号里都是SqlParameter对象啊,我说的是能不能用add的方法加入元素到SqlParameter[]数组里

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eqwgtr 共回答了24个问题 | 采纳率87.5%
大括号里当然不能用字符串了.
你是一个SqlParameter类型的数组,他的元素只能是SqlParameter类型的.
SqlParameter[] para=
1年前

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大学统计
Let X be a Poisson random variable with parameter λ. Then
P(X=x|λ)= λ^x*e^−λ/x! . Suppose we take an iid sample (X1, . . . , Xn) from this distribution. We find X ̄ = 2.
(a) Show that X ̄ is a sufficient statistic. (b) Suppose λ may take any value in [0, ∞). What is the maximum likelihood estimate of
λ?
(c) Suppose λ may take any value in [0, 1]. What is the maximum likelihood estimate of λ?
(d) Suppose λ has a uniform prior distribution on [0, 1]. What is the mean of the posterior distribution? (Note: You may leave an integral in your answer.)
whf93971年前1
zhuchengbing 共回答了17个问题 | 采纳率88.2%
好题
struts2 的action获取aaa值出现警告:Parameter [aaa] is not on the excl
struts2 的action获取aaa值出现警告:Parameter [aaa] is not on the excludeParams list of patterns and will be appended to action!
jsp页面有个 ,action里面的私有变量和setget方法都写了没有问题.
在action方法中可以得到aaa的取值,但是旧是报了这个警告,这是为什么.测试了一下action不适用该值也是会报.
443355441年前1
偷心WZ 共回答了23个问题 | 采纳率95.7%
这个是struts2的BUG最新版已经修正了 只在DEBUG模式会有 不会有影响的
英语翻译omitting the desired parameter from the command.If multi
英语翻译
omitting the desired parameter from the command.If multiple queries are sent on one command line
(separated by semicolons,of course) the answers will be returned in a single response line with the
individual responses separated by semicolons.The default response terminator that the XL420 sends with any answer to a query is carriage return-linefeed on RS232 and linefeed plus EOI on GPIB.The RS232 terminator may be changed using the ENDT command,while the GPIB terminator is fixed.
逆风的吻1年前1
wangyingyun45520 共回答了19个问题 | 采纳率89.5%
在命令中忽略我们所需的那个参数.如果在一个命令中发送多重查询(当然,要使用分号隔开),答案会返回到同一回复行中并以分号隔开各个答案.对于查询的答案,XL420发送的默认的回复终止符在RS232上是回车-换行,在GPIB上是换行加EOI.RS232的终止符可使用ENDT命令更改,而GPIB的终止符是固定不变的.

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