在你的qt的路径下打开命令行
windeployqt C:\Users\Administrator\Desktop\untitled3\build\Desktop_Qt_5_15_2_MSVC2019_64bit-Release\release\untitled3.exe如果找不到windeployqt
D:\QT\5.15.2\msvc2019_64\binD:\QT\5.15.2\msvc2019_64\bin\windeployqt.exe C:\Users\Administrator\Desktop\untitled3\build\Desktop_Qt_5_15_2_MSVC2019_64bit-Release\release\untitled3.exeD:\QT\5.15.2\msvc2019_64\bin\windeployqt.exe untitled3.exe