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import numpy as npimport cv2#保存自拍cap = cv2.VideoCapture(0)cap.set(3,2480)cap.set(4,1960)print(str(cap.get(3))+" "+str(cap.get(4)))time = 0while time<1000:    ret,frame = cap.read()  #  frame = cv2.cvtColor(frame,cv2.COLOR_BGR2GRAY)    cv2.namedWindow("clip",cv2.WINDOW_NORMAL)    cv2.imshow("clip",frame)    cv2.imwrite("C:\\Users\\Administrator\\DeskTop\\jack.jpg",frame)    cv2.waitKey(100)    time+=1cap.release()cv2.destroyAllWindows()

#保存视频import cv2cap = cv2.VideoCapture(0)fourCC =  cv2.VideoWriter_fourcc(*'MJPG')#指定视频的名字,编码方式,每秒播放的帧数,每帧的大小out = cv2.VideoWriter("jack.avi",fourCC,5,(640,480))while(cap.isOpened()):    ret,frame = cap.read()    out.write(frame)    cv2.imshow("jack",frame)    code = cv2.waitKey(100)    if code == ord('A'):        break;    else:        continue;cap.release()out.release()cv2.destroyAllWindows()

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