2 解压到D:\qt515
3 打开x86 Native Tools Command Prompt for VS 2019控制台
4 mkdir qt-build
cd qt-build
D:\qt515\configure.bat --debug-and-release -confirm-license -opensource -shared -no-icu -opengl desktop -no-style-windowsvista -optimize-size -nomake examples -nomake tests
nmake
经过漫长等待就可以了