HotelCommon/StringUtil.cs

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using System;
using System.Collections.Generic;
using System.Text;
using System.Text.RegularExpressions;
using System.IO;
using System.Security;
using System.Web;
using System.Drawing;
using System.Drawing.Imaging;
using System.Web.Security;

namespace HotelCommon
{
    public class StringUtil
    {
        private static string passWord;	//加密字符串

        /// <summary>
        /// 返回 URL 字符串的解码结果
        /// </summary>
        /// <param name="str">字符串</param>
        /// <returns>解码结果</returns>
        public static string UrlDecode(string str)
        {
            return HttpUtility.UrlDecode(str);
        }

        /// <summary>
        /// 返回 URL 字符串的编码结果
        /// </summary>
        /// <param name="str">字符串</param>
        /// <returns>编码结果</returns>
        public static string UrlEncode(string str)
        {
            return HttpUtility.UrlEncode(str);
        }

        /// <summary>
        /// 判断输入是否数字
        /// </summary>
        /// <param name="num">要判断的字符串</param>
        /// <returns></returns>
        static public bool VldInt(string num)
        {
            #region
            try
            {
                Convert.ToInt32(num);
                return true;
            }
            catch { return false; }
            #endregion
        }

        /// <summary>
        /// 返回文本编辑器替换后的字符串
        /// </summary>
        /// <param name="str">要替换的字符串</param>
        /// <returns></returns>
        static public string GetHtmlEditReplace(string str)