利用Iphlpapi发送arp请求的小程序，在处理线程结束的地方有bug,还没有解决。如果是局域网ip地址填写你所在网段，最后一位是要扫描的终点。-use Iphlpapi arp request to send a small procedure in handling threaded end of the local bug, is still not resolved. If LAN ip address where you fill in net, the last one is to