DevC++ 上的ISO C++ 11开关，使用C++ 11新特性
用DevC++ 运行C++ 程序时，出现如下错误
| error This file requires compiler and library support for the ISO C++ 2011 standard. This support is currently experimental, and must be enabled with the -std=c++11 or -std=gnu++11 compiler options. |
按下图设置即可。