try catch finally 块是如何工作的? [英] How does the try catch finally block work?

问题描述

在C#中，try catch finally块是如何工作的?

所以如果有异常，我知道它会跳到catch块，然后再跳到finally块.

但是如果没有错误，catch 块不会运行，但是 finally 块会运行吗?

解决方案

是的，无论是否有异常，finally 块都会运行.

<预>尝试[尝试语句][退出尝试][捕捉[异常[作为类型]][当表达式][捕获语句][退出尝试]][ 抓住 ... ][ 最后[finallyStatements]]-始终运行结束尝试

请参阅:http://msdn.microsoft.com/en-us/library/fk6t46tz%28v=vs.80%29.aspx

In C#, how does a try catch finally block work?

So if there is an exception, I know that it will jump to the catch block and then jump to the finally block.

But what if there is no error, the catch block wont get run, but does the finally block get run then?

解决方案

Yes, the finally block gets run whether there is an exception or not.

Try
    [ tryStatements ]
    [ Exit Try ]
[ Catch [ exception [ As type ] ] [ When expression ]
    [ catchStatements ]
    [ Exit Try ] ]
[ Catch ... ]
[ Finally
    [ finallyStatements ] ] --RUN ALWAYS
End Try

See: http://msdn.microsoft.com/en-us/library/fk6t46tz%28v=vs.80%29.aspx

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