Python CV2:[ WARN:0]`anonymous-namespace‘SourceReaderCB~SourceReaderCB terminating async callback
一、出问题的代码importnumpyasnpimportcv2cap=cv2.VideoCapture(0)#摄像头编号。#DefinethecodecandcreateVideoWriterobjectfourcc=cv2.VideoWriter_fourcc(*'XVID')#注意编码器out=cv2.VideoWriter('output3.avi',fourcc,20.0,(640,48