Finding a seemingly arbitrary number in the middle of a 40 line block of code is a maintenance nightmare.

在40行的代码块了中寻找一个不带任何表意的字符变量，对于维护工作来说简直是场噩梦。

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Any arbitrary code can enter a When block to decide whether or not to handle an Exception.

任何的代码都可以添加When去决定是否要处理某个异常。

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Any arbitrary code can enter a When block to decide whether or not to handle an Exception.

任何的代码都可以添加When去决定是否要处理某个异常。

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