WmptWap/App_LocalResources/CommonClass.cs

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using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Net;
using System.Security.Cryptography;
using System.Text;
using System.Text.RegularExpressions;
using System.Web;
using System.Web.Script.Serialization;
using System.Web.UI;

/// <summary>
/// CommonClass 的摘要说明
/// </summary>
public class CommonClass
{
    #region  常用
    //截取指定长度字符串
    public static string CutStr(string str, int length)
    {
        str = NoHTML(str);
        if (str.Length > length)
        {
            return str.Substring(0, length);
        }
        return str;
    }
    //获取访问客户端IP
    public static string GetIP()
    {
        string result = String.Empty;
        result = HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"];
        if (string.IsNullOrEmpty(result))
        {
            result = HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"];
        }
        if (string.IsNullOrEmpty(result))
        {
            result = HttpContext.Current.Request.UserHostAddress;
        }
        if (string.IsNullOrEmpty(result))
        {
            return "127.0.0.1";
        }
        return result;
    }

    //根据时间创建字符串
    public static string CreateDateTimeString()
    {
        DateTime now = DateTime.Now;
        string newString = now.Year.ToString()
            + now.Month.ToString().PadLeft(2, '0')
            + now.Day.ToString().PadLeft(2, '0')
            + now.Hour.ToString().PadLeft(2, '0')
            + now.Minute.ToString().PadLeft(2, '0')
            + now.Second.ToString().PadLeft(2, '0')
            + now.Millisecond.ToString().PadLeft(3, '0');
        return (newString);