为什么要创建自定义的异常？

问题描述：

为什么我们需要创建 .NET？

答

具体海关例外允许你来隔离不同的错误类型的catch语句。共同构建异常处理是这样的：

Specific customs exceptions allow you to segregate different error types for your catch statements. The common construct for exception handling is this:

try
{}
catch (Exception ex)
{}

这捕获的所有的异常类型无关。但是，如果你有自定义异常，你可以有不同的处理程序为每种类型的：

This catches all exceptions regardless of type. However, if you have custom exceptions, you can have separate handlers for each type:

try
{}
catch (CustomException1 ex1)
{
    //handle CustomException1 type errors here
}
catch (CustomException2 ex2)
{
    //handle CustomException2 type errors here
}
catch (Exception ex)
{
    //handle all other types of exceptions here
}

人机工程学，具体的例外允许您控制在你的异常处理更精细的水平。这样做的好处是共享的不仅是自定义异常，但在.NET系统库中的所有其他异常类型为好。

Ergo, specific exceptions allow you a finer level of control over your exception handling. This benefit is shared not only by custom exceptions, but all other exception types in the .NET system libraries as well.

为什么要创建自定义的异常？

相关推荐