关于C#：正确的try catch语法？

Correct try-catch syntax?

本问题已经有最佳答案，请猛点这里访问。

如果我想保留堆栈跟踪，并且我有这个catch块…

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try
{
//Cause exception here...
}
catch (CustomException customEx)
{
//Handle custom exception here...
}
catch
{
throw;
}

上面的catch(不带参数)是否会重新引发异常？

你的问题不清楚。你的实际问题似乎是"一个catch(SpecificException)是否属于catch将军？"，答案是"否"。

如果"例外"是指"除CustomException以外的任何其他例外"，那么是的，它们将被重新拥有。

如果你还想重新传输后者，你还需要在catch(CustomException customex)中有一个throw。

您可以使用try-catch-finally。

A common usage of catch and finally together is to obtain and use resources in a try block, deal with exceptional circumstances in a catch block, and release the resources in the finally block.
For more information and examples on re-throwing exceptions, see try-catch and Throwing Exceptions. For more information about the finally block, see try-finally.

有关详细信息，请参阅

https://msdn.microsoft.com/en-us/library/dszsf989.aspx