如何使用Java风格抛出关键字在C＃中？ [英] How to use Java-style throws keyword in C#?

问题描述

在Java中，<一个href=\"http://download.oracle.com/javase/tutorial/essential/exceptions/declaring.html\"><$c$c>throws关键字允许的方法来声明，它不会自行处理异常，而是扔给调用方法。

In Java, the throws keyword allows for a method to declare that it will not handle an exception on its own, but rather throw it to the calling method.

有没有在C＃中类似的关键字/属性？

Is there a similar keyword/attribute in C#?

如果没有相当的，你怎么能完成相同（或类似）的影响？

If there is no equivalent, how can you accomplish the same (or a similar) effect?

推荐答案

在Java中，你必须要么处理异常或标记方法为一体，可以使用抛出关键字。

In Java, you must either handle an exception or mark the method as one that may throw it using the throws keyword.

C＃没有这个关键字或等效之一，因为在C＃中，如果你不处理异常，它会冒泡，直到捕获或如果不抓住它会终止程序。

C# does not have this keyword or an equivalent one, as in C#, if you don't handle an exception, it will bubble up, until caught or if not caught it will terminate the program.

如果你想处理它，然后再次抛出你可以做到以下几点：

If you want to handle it then re-throw you can do the following:

try
{
  // code that throws an exception
}
catch(ArgumentNullException ex)
{
  // code that handles the exception
  throw;
}

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