asp.net常用函数收藏第1/2页


            /// <summary> /// 得到站点用户IP /// </summary> /// <returns></returns> public static string getUserIP() { return HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"].ToString(); } /// <summary> /// 去除字符串最后一个','号 /// </summary> /// <param name="chr">:要做处理的字符串</param> /// <returns>返回已处理的字符串</returns> public static string Lost(string chr) { if (chr == null || chr == string.Empty) { return ""; } else { chr = chr.Remove(chr.LastIndexOf(",")); return chr; } } /// <summary> /// 去除字符串第一个'/'号 /// </summary> /// <param name="chr">要做处理的字符串</param> /// <returns>返回已处理的字符串</returns> public static string lostfirst(string chr) { string flg = ""; if (chr != string.Empty || chr != null) { if (chr.Substring(0, 1) == "/") flg = chr.Replace(chr.Substring(0, 1), ""); else flg = chr; } return flg; } /// <summary> /// 替换html中的特殊字符 /// </summary> /// <param name="theString">需要进行替换的文本。</param> /// <returns>替换完的文本。</returns> public static string HtmlEncode(string theString) { theString = theString.Replace(">", ">"); theString = theString.Replace("<", "<"); theString = theString.Replace(" ", " "); theString = theString.Replace(" ", " "); theString = theString.Replace("\"", """); theString = theString.Replace("\'", "'"); theString = theString.Replace("\n", "<br/> "); return theString; } /// <summary> /// 恢复html中的特殊字符 /// </summary> /// <param name="theString">需要恢复的文本。</param> /// <returns>恢复好的文本。</returns> public static string HtmlDiscode(string theString) { theString = theString.Replace(">", ">"); theString = theString.Replace("<", "<"); theString = theString.Replace(" ", " "); theString = theString.Replace(" ", " "); theString = theString.Replace(""", "\""); theString = theString.Replace("'", "\'"); theString = theString.Replace("<br/> ", "\n"); return theString; } /// <summary> /// 生成随机数字 /// </summary> /// <param name="length">生成长度</param> /// <returns></returns> public static string Number(int Length) { return Number(Length, false); } /// <summary> /// 生成随机数字 /// </summary> /// <param name="Length">生成长度</param> /// <param name="Sleep">是否要在生成前将当前线程阻止以避免重复</param> /// <returns></returns> public static string Number(int Length, bool Sleep) { if (Sleep) System.Threading.Thread.Sleep(3); string result = ""; System.Random random = new Random(); for (int i = 0; i < Length; i++) { result += random.Next(10).ToString(); } return result; } 

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