OpenCV读取摄像头图像，退出时出错了，各位大佬帮帮忙！！！在下新人？

报错如下：

C:\Users\11985\AppData\Local\Programs\Python\Python37\python.exe G:/Learnning/Program/python/OpenCv/Tutorial_1.py
[ WARN:1] global C:\projects\opencv-python\opencv\modules\videoio\src\cap_msmf.cpp (674) SourceReaderCB::~SourceReaderCB terminating async callback

Process finished with exit code 0

读取图像可以但是按下ESC退出时就有问题了。