vs2013 error c4996: 'fopen': This function or variable may be unsafe

error C4996: 'fopen': This function or variable may be unsafe. Consider using fopen_s instead. To disable deprecation, use _CRT_SECURE_NO_WARNINGS. See online help for details

 

解决方案，项目 =》属性 =》c/c++  =》预处理器=》点击预处理器定义，编辑，加入_CRT_SECURE_NO_WARNINGS，即可。