局域网下的网速限制，主要针对Nat环境下的网速限制。采用ARP欺骗手段-Speed local area network under the constraints, the main environment for Nat speed limit. The use of ARP deception

易语言写的网速限制，可以限制电脑当前的网速-Easy language to write the speed limit, you can limit the current speed of the computer