运行VS出现warning C4996错误，
warning C4996: ‘sprintf‘: This function or variable may be unsafe. Consider using sprintf_s instead. To disable deprecation, use _CRT_SECURE_NO_WARNINGS.
解决办法：打开stdafx.h头文件，在include之前添加 #define _CRT_SECURE_NO_DEPRECATE
原文：http://www.cnblogs.com/righere/p/5164505.html