Qt
https://download.qt.io/official_releases/online_installers/
> qt-unified-windows-x64-4.6.1-online.exe --mirror https://mirrors.aliyun.com/qt
> qt-unified-windows-x64-4.6.1-online.exe --mirror https://mirrors.tuna.tsinghua.edu.cn/qt
https://download.qt.io/official_releases/online_installers/
> qt-unified-windows-x64-4.6.1-online.exe --mirror https://mirrors.aliyun.com/qt
> qt-unified-windows-x64-4.6.1-online.exe --mirror https://mirrors.tuna.tsinghua.edu.cn/qt