此python脚本的主要作用是通过网络发送命令，抓拍网络摄像机当前的帧图片，适合学习python网络编程。-The main function of this Python scr ipt command is sent through the network, the current frame image capture network camera, for learning Python Network programming.

python版本的client server通讯源码，可以学习通讯原理。-python version of the client server communication source, you can learn communication principles.