说明：  一些关于C/C++编程时需留意的规范，你可以从中找出你的一些一直习惯用的但隐含错误的方式编程行为，提高软件质量
(Some specifications that should be paid attention to when programming in C / C + +, from which you can find out some programming behaviors that you have been used to but implied errors, so as to improve the quality of software)