可以自动更换IP，首先判断网络连接是否可用，然后设置ip地址和子网掩码、设置和获取网关地址、设置DNS、显示本地连接信息、获取IP地址、获取子网掩码、获取默认网关、获取DNS服务器、显示子网掩码、显示默认网关、显示DNS服务器等-Can automatically change the IP, first determine whether the network connection is available, and then set the IP address and subnet ma

获取IP地址,获取网关,,获取子网掩码，设置IP-Obtain an IP address, access gateway, access subnet mask, set the IP