IPv4正则表达式
#region //IPV4正则表达式函数
public static bool IsIPv4Address(string ip)
{
string pattern = @"^(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9])\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9]|0)\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9]|0)\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[0-9])$";
Regex r = new Regex(pattern);
Match m = r.Match(ip);
return m.Success;
}
使用方法:
IPHostEntry IpEntry = Dns.GetHostEntry(Dns.GetHostName());
for (int i = 0; i != IpEntry.AddressList.Length; i++)
{
if (IsIPv4Address(IpEntry.AddressList[i].ToString()))
{
comboBox1.Items.Add(IpEntry.AddressList[i]);
}
}
亲测好用,原文地址:
https://www.cnblogs.com/wangbin5542/archive/2010/05/25/1743247.html