一个IP切换的工具，里面附带源码，功能非常强大。适合有本本的同志，因为要经常要更换IP和DNS服务器。因为网上找过来的那些IP切换软件放着一大堆的广告，看着就恶心，希望这个程序对大家有一定的帮助。-an IP switching tools, incidental inside source, which is very powerful. Have books for the comrades, often due to the replacement of IP and DNS server