What's this?
(root_dir = file_dir)
g++.exe -c (file_name) -std=c++11 -I".\MinGW64\include" -I".\MinGW64\x86_64-w64-mingw32\include" -I".\MinGW64\lib\gcc\x86_64-w64-mingw32\4.8.1\include" -L".\MinGW64\lib" -L".\MinGW64\x86_64-w64-mingw32\lib"
链接这一块
