学习OpenC：VS2012中flann\logger.h(66): error C4996: 'fopen': This function or variable may be unsafe问题

使用vs2012配置opencv编译出现问题:

1>------ 已启动生成: 项目: Win32ForOpenCV245, 配置: Debug Win32 ------
1>  stdafx.cpp
1>  Win32ForOpenCV245.cpp
1>f:\softs\opencv245\opencv\build\include\opencv2\flann\logger.h(66): 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.
1>          c:\program files (x86)\microsoft visual studio 11.0\vc\include\stdio.h(218) : 参见“fopen”的声明