Visual C# IP相关操作类，获得当前客户端IP，判断IP格式，也就是检测是否是IP地址，一些关于IP的基本操作，欢迎C#新手参考：

01///

02/// 获得当前页面客户端的IP

03///

04/// 当前页面客户端的IP

05public static string GetIP()

06{

07 string result = String.Empty;

08 result = HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"];

09 if (null == result || result == String.Empty)

10 {

11 result = HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"];

12 }

13 if (null == result || result == String.Empty)

14 {

15 result = HttpContext.Current.Request.UserHostAddress;

16 }

17 if (null == result || result == String.Empty || !IsIP(result))

18 {

19 return "0.0.0.0";

20 }

21 return result;

22}

23///

24/// 是否为ip

25///

26///

27///

28public static bool IsIP(string ip)

29{

30 return Regex.IsMatch(ip, @"^((2[0-4]d|25[0-5]|[01]?dd?).){3}(2[0-4]d|25[0-5]|[01]?dd?)$");

31}

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