什么是diff bw throw ex;投掷; [英] what is diff bw throw ex; and throw;

问题描述

什么是差异b /



catch（Exception ex）

{

抛出ex;

}



和



catch（例外情况）

{

throw;

}



谢谢

Hi,

What is the diff bw

catch(Exception ex)
{
throw ex;
}

and

catch(Exception ex)
{
throw;
}

Thanks

推荐答案

浏览此链接

http://stackoverflow.com/questions/730250/is-there-a-difference-between-throw-and- throw-ex [ ^ ]

希望这有助于

Go through this link
http://stackoverflow.com/questions/730250/is-there-a-difference-between-throw-and-throw-ex[^]
Hope this helps

catch(Exception ex)
{
throw;
}

这意味着从被调用的地方抛出异常。例如假设你有函数xyz（ ）并且在这个xyz（）中你写throw; ，现在你在Main（）函数中调用xyz（）函数，如果有异常则xyz（）函数会将异常抛出到main函数。



但是如果你这样写的话

It means the exception is thrown to fuction from where it is called .for example suppose you have function xyz() and in this xyz() you write "throw;" ,now u are calling xyz() function in Main() function, if there is exception then xyz() function will throw the exception to the main function.

but if you write like this

catch(Exception ex)
{
throw ex;
}

那么它会终止你的程序。如果我们谈论上面的场景，那么异常会抛到主函数由XYZ（）。

then it will terminate you program.If we talk about the above scenario then the exception will thrown to the main function by XYZ().

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