PS F:\python\computer_version> python -u "f:\python\computer_version\videosave_test.py"
Traceback (most recent call last):
File "f:\python\computer_version\videosave_test.py", line 15, in <module>
out = cv.VideoWriter_fourcc('output.avi',fourcc,20.0,(640,480))
TypeError: Expected single character string for argument 'c2'
[ WARN:0] global C:\Users\appveyor\AppData\Local\Temp\1\pip-req-build-6lylwdcz\opencv\modules\videoio\src\cap_msmf.cpp (435) `anonymous-namespace'::SourceReaderCB::~SourceReaderCB
terminating async callback
------------------------
line 15：out = cv.VideoWriter_fourcc('output.avi',fourcc,20.0,(640,480))
搞不懂哪里出现问题了，是跟着视频qiao'de
out = cv.VideoWriter_fourcc('output.avi',fourcc,20.0,(640,480))改为 out = cv.VideoWriter('output.avi',fourcc,20.0,(640,480))