说明：  VB编程实现扫描同一局域网内的所有电脑的IP地址，并获取该地址所在主机的主机名。本程序只能用于扫描运行本程序所以局域网内的电脑，可以指定IP的起始段、结束段，但不能更改网段地址，原理大致差不多
(VB programming to scan the same LAN all the computer IP address, and access to the host of the address where the host name. This procedure can only be used to run scans the program so the LAN computer can specify the IP of the initial segment, the end of paragraph, but you can not change the IP address subnet. The principle of more or less similar )