一路走来一路坑，参考

https://blog.csdn.net/weixin_43679427/article/details/115583516

https://blog.csdn.net/wfwayne/article/details/109713885

https://blog.csdn.net/qq_38965737/article/details/102595908

.pro配置

INCLUDEPATH +=D:\softs\opencv4.5.0\opencv\sources\opencv-build\install\include

              D:\softs\opencv4.5.0\opencv\sources\opencv-build\install\include\opencv

              D:\softs\opencv4.5.0\opencv\sources\opencv-build\install\include\opencv2

LIBS +=D:\softs\opencv4.5.0\opencv\sources\opencv-build\lib\libopencv_*.a