count=0 cv2.imshow('my',frame) success,frame=cc1.read() num.value+=1 cv2.destroyWindow('my') cc1.release() def put_number(num): while(num.value<300): print(num.value) time.sleep(1) if __name__=='__main__': manager=Manager() number=Value("d",10.0) manager=Manager2() em=manager.Employee('zhangsan',1000) p=Process(target=get_frame,args=(number,)) p.start() p1=Process(target=put_number,args=(number,)) p1.start() p.join() p1.join() print(time.time()) print(number) print('结束测试')