问题1
Eclipse支持C++11
解决办法：
Project settings project右键-> c/c++ build ->Settings -> GCC C++ Compiler -> Miscellaneous -> Other flags后面加上 -std=c++11
Workspace settings Window-> Preference -> Build -> Settings ->Discovery -> CDT GCC Built-in Compiler Settings MinGW(shared) ->(command to get compiler specs) ${COMMAND} -E -P -v -dD "${INPUTS}" -std=c++11
