百度网盘: https://pan.baidu.com/s/1oPkIPXFLgYrKgeDWlAxBWQ 提取码: dtdh

站内下载: https://www.bugquit.com/download/mingw.7z

sourceforge : https://sourceforge.net/projects/mingw-w64/files/Toolchains%20targetting%20Win64/Personal%20Builds/mingw-builds/8.1.0/threads-posix/seh/x86_64-8.1.0-release-posix-seh-rt_v6-rev0.7z/download

下载好解压到C:\mingw64

然后我们需要将C:\mingw64\bin加入到环境变量PATH中。