MinGW-w64安装包，解决MinGW-w64安装过程中的 ERROR RES 及 压缩包已损坏问题。原下载地址： https://astuteinternet.dl.sourceforge.net/project/mingw-w64/Toolchains%20targetting%20Win64/Personal%20Builds/mingw-builds/4.9.1/threads-posix/seh/x86_64-4.9.1-release-posix-seh-rt_v3-rev0.7z