Verified65% confidenceFactTime unknown
The parameter unit of cv2.waitKey() is milliseconds; passing 0 means waiting indefinitely until the user presses any key on the keyboard.
3
Sources
65%
Confidence
Long-term
Relevance
6/1/2026
First Seen
Sources
Python OpenCV入门教程：图片读取与显示完整指南
bilibili尚学堂官方学习课堂
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