异常处理机制是保护程序正常运行的重要手段,在程序设计中利用好异常处理机制,可以提高软件的开发效率,降低开发成本,提高软件的健壮性和可靠性.主要介绍了C#中的结构化异常处理的方法、常用异常类的捕捉和自定义异常类的方法.-Exception handling mechanism is an important means of protecting the program to work correctly, the use of the program design good exception handling mechanism can improve software development efficiency, reduce development costs and improve the robustness and reliability of the software, mainly introduced in the structure of C# exception handling method to capture and common custom exception class exception class.