把握好C++的出错艺术，你程序中的错误(bug)越少，你的最终用户对你的程序的感觉就越好；你对错误(bug)的处理越好，用户们发现错误(bug)时就越乐于告诉你以便你改正错误。-Good grasp of the art of C++ error, the error in your application (bug) the less you end-user of your program' s feeling better　your error (bug) in the treatment the better, users have found an error (bug) more willing to tell you when you correct their mistakes.