1. 下载
https://sourceforge.net/projects/mingw/
2. 安装
参考
https://www.geeksforgeeks.org/installing-mingw-tools-for-c-c-and-changing-environment-variable/
https://sourceforge.net/projects/mingw/
https://www.geeksforgeeks.org/installing-mingw-tools-for-c-c-and-changing-environment-variable/