获取域IP,自动转化成字符型IP的一个小例子-Obtain the domain IP, automatically translate into a small example of character IP

一个自动获取IP，子网掩码，默认网，DNS等的程序，适合IP经常更改的用户-An automatic access to IP, subnet mask, default network, DNS and other procedures, suitable IP frequently changing user-Automatically obtain IP address and DNS, MAC

Visual C#自动更新本机IP地址，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，新手可以学习到上述技巧-Visual C# automatically update the IP address of the machine, first determine whether the network connection is