1. cv2.waitKey(t) #等待t ms后继续执行，t=0则无限等待，返回值为键盘输入的键值的ASCII值
...input = cv2.waitKey(0) #input is ASCII value of key...cv2.waitKey(0) #will not stop waitting...
opencv-python使用
原文：https://www.cnblogs.com/grainrain/p/13191385.html
