需引入命名空间：
using System.Net; using System.Management;
1 /// <summary> 2 /// 获取本地IP 3 /// </summary> 4 /// <returns></returns> 5 public static string Get_UserIP() 6 { 7 string ip = ""; 8 string strHostName = Dns.GetHostName(); //得到本机的主机名 9 IPHostEntry ipEntry = Dns.GetHostByName(strHostName); //取得本机IP 10 if (ipEntry.AddressList.Length > 0) 11 { 12 ip = ipEntry.AddressList[0].ToString(); 13 } 14 return ip; 15 //string userip = ""; 16 //string name = Dns.GetHostName(); 17 //IPAddress[] ips = Dns.GetHostAddresses(name); 18 //foreach (IPAddress ip in ips) 19 // userip += ip.ToString() + "|";//所有IP 20 //return userip; 21 } 22 /// <summary> 23 /// 获取主机域名 24 /// </summary> 25 /// <returns></returns> 26 public static string Get_HostName() 27 { 28 return Dns.GetHostName(); 29 } 30 /// <summary> 31 /// 获取CPU编号 32 /// </summary> 33 /// <returns>返回一个字符串类型</returns> 34 public static string Get_CPUID() 35 { 36 try 37 { 38 //需要在解决方案中引用System.Management.DLL文件 39 ManagementClass mc = new ManagementClass("Win32_Processor"); 40 ManagementObjectCollection moc = mc.GetInstances(); 41 string strCpuID = null; 42 foreach (ManagementObject mo in moc) 43 { 44 strCpuID = mo.Properties["ProcessorId"].Value.ToString(); 45 break; 46 } 47 return strCpuID; 48 } 49 catch 50 { 51 return ""; 52 } 53 } 54 /// <summary> 55 /// 获取第一分区硬盘编号 56 /// </summary> 57 /// <returns>返回一个字符串类型</returns> 58 public static string GetHardDiskID() 59 { 60 try 61 { 62 ManagementObjectSearcher searcher = new ManagementObjectSearcher("SELECT * FROM Win32_PhysicalMedia"); 63 string strHardDiskID = null; 64 foreach (ManagementObject mo in searcher.Get()) 65 { 66 strHardDiskID = mo["SerialNumber"].ToString().Trim(); 67 break; 68 } 69 return strHardDiskID; 70 } 71 catch 72 { 73 return ""; 74 } 75 } 76 /// <summary> 77 /// 获取网卡的MAC地址 78 /// </summary> 79 /// <returns>返回一个string</returns> 80 public static string GetNetCardMAC() 81 { 82 try 83 { 84 string stringMAC = ""; 85 ManagementClass MC = new ManagementClass("Win32_NetworkAdapterConfiguration"); 86 ManagementObjectCollection MOC = MC.GetInstances(); 87 foreach (ManagementObject MO in MOC) 88 { 89 if ((bool)MO["IPEnabled"] == true) 90 { 91 stringMAC += MO["MACAddress"].ToString(); 92 } 93 } 94 return stringMAC; 95 } 96 catch 97 { 98 return ""; 99 } 100 } 101 /// <summary> 102 /// 获取当前网卡IP地址 103 /// </summary> 104 /// <returns></returns> 105 public static string GetNetCardIP() 106 { 107 try 108 { 109 string stringIP = ""; 110 ManagementClass MC = new ManagementClass("Win32_NetworkAdapterConfiguration"); 111 ManagementObjectCollection MOC = MC.GetInstances(); 112 foreach (ManagementObject MO in MOC) 113 { 114 if ((bool)MO["IPEnabled"] == true) 115 { 116 string[] IPAddresses = (string[])MO["IPAddress"]; 117 if (IPAddresses.Length > 0) 118 { 119 stringIP = IPAddresses[0].ToString(); 120 } 121 } 122 } 123 return stringIP; 124 } 125 catch 126 { 127 return ""; 128 } 129 } 130 public static string GetOutIP() 131 { 132 string strUrl = "http://www.ip138.com/ip2city.asp"; //获得IP的网址了 133 Uri uri = new Uri(strUrl); 134 System.Net.WebRequest wr = System.Net.WebRequest.Create(uri); 135 System.IO.Stream s = wr.GetResponse().GetResponseStream(); 136 System.IO.StreamReader sr = new System.IO.StreamReader(s, Encoding.Default); 137 string all = sr.ReadToEnd(); //读取网站的数据 138 int i = all.IndexOf("[") + 1; 139 string tempip = all.Substring(i, 15); 140 string ip = tempip.Replace("]", "").Replace(" ", "");//找出i 141 //也可用 142 //new Regex(@"ClientIP: [([d.]+?)]").Match(new System.Net.WebClient().DownloadString("http://www.skyiv.com/info/")).Groups[1].Value; 143 return ip; 144 }