为什么这个“最后”执行？ [英] Why does this "finally" execute?

问题描述

如果您运行下面的代码，它将在每次调用goto后实际执行：

If you run the code below it actually executes the finally after every call to the goto:

    int i = 0;
Found:
    i++;
    try
    {
        throw new Exception();
    }
    catch (Exception)
    {
        goto Found;
    }
    finally
    {
        Console.Write("{0}\t", i);
    }

为什么？

推荐答案

你为什么期望它不执行？

Why do you expect it to not execute?

如果您尝试/ catch / finally或try / finally阻止，最终阻止执行，无论您在try或catch块中可能有什么代码<罢工> 大部分时间。

If you have try/catch/finally or try/finally block, finally block executes no matter what code you may have in the try or catch block most of the time.

代替goto，考虑'return'。

Instead of goto, consider 'return'.

//imagine this try/catch/finally block is inside a function with return type of bool. 
try
{
    throw new Exception();
}
catch (Exception)
{
    return false; //Let's say you put a return here, finally block still executes.
}
finally
{
    Console.WriteLine("I am in finally!");
}

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