字符如何操作普通帮助类?字符操作普通帮助类的方法(代码示例)

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 /// <summary>     /// 普通帮助类     /// </summary>     public class CommonHelper     {         //星期数组         private static string[] _weekdays = { "星期日", "星期一", "星期二", "星期三", "星期四", "星期五", "星期六" };         //空格、回车、换行符、制表符正则表达式         private static Regex _tbbrRegex = new Regex(@"s*|t|r|n", RegexOptions.IgnoreCase);          #region 时间操作          /// <summary>         /// 获得当前时间的""yyyy-MM-dd HH:mm:ss:fffffff""格式字符串         /// </summary>         public static string GetDateTimeMS()         {             return DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss:fffffff");         }          /// <summary>         /// 获得当前时间的""yyyy年MM月dd日 HH:mm:ss""格式字符串         /// </summary>         public static string GetDateTimeU()         {             return string.Format("{0:U}", DateTime.Now);         }          /// <summary>         /// 获得当前时间的""yyyy-MM-dd HH:mm:ss""格式字符串         /// </summary>         public static string GetDateTime()         {             return DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss");         }          /// <summary>         /// 获得当前日期         /// </summary>         public static string GetDate()         {             return DateTime.Now.ToString("yyyy-MM-dd");         }          /// <summary>         /// 获得中文当前日期         /// </summary>         public static string GetChineseDate()         {             return DateTime.Now.ToString("yyyy月MM日dd");         }          /// <summary>         /// 获得当前时间(不含日期部分)         /// </summary>         public static string GetTime()         {             return DateTime.Now.ToString("HH:mm:ss");         }          /// <summary>         /// 获得当前小时         /// </summary>         public static string GetHour()         {             return DateTime.Now.Hour.ToString("00");         }          /// <summary>         /// 获得当前天         /// </summary>         public static string GetDay()         {             return DateTime.Now.Day.ToString("00");         }          /// <summary>         /// 获得当前月         /// </summary>         public static string GetMonth()         {             return DateTime.Now.Month.ToString("00");         }          /// <summary>         /// 获得当前年         /// </summary>         public static string GetYear()         {             return DateTime.Now.Year.ToString();         }          /// <summary>         /// 获得当前星期(数字)         /// </summary>         public static string GetDayOfWeek()         {             return ((int)DateTime.Now.DayOfWeek).ToString();         }          /// <summary>         /// 获得当前星期(汉字)         /// </summary>         public static string GetWeek()         {             return _weekdays[(int)DateTime.Now.DayOfWeek];         }          #endregion          #region 数组操作          /// <summary>         /// 获得字符串在字符串数组中的位置         /// </summary>         public static int GetIndexInArray(string s, string[] array, bool ignoreCase)         {             if (string.IsNullOrEmpty(s) || array == null || array.Length == 0)                 return -1;              int index = 0;             string temp = null;              if (ignoreCase)                 s = s.ToLower();              foreach (string item in array)             {                 if (ignoreCase)                     temp = item.ToLower();                 else                     temp = item;                  if (s == temp)                     return index;                 else                     index++;             }              return -1;         }          /// <summary>         /// 获得字符串在字符串数组中的位置         /// </summary>         public static int GetIndexInArray(string s, string[] array)         {             return GetIndexInArray(s, array, false);         }          /// <summary>         /// 判断字符串是否在字符串数组中         /// </summary>         public static bool IsInArray(string s, string[] array, bool ignoreCase)         {             return GetIndexInArray(s, array, ignoreCase) > -1;         }          /// <summary>         /// 判断字符串是否在字符串数组中         /// </summary>         public static bool IsInArray(string s, string[] array)         {             return IsInArray(s, array, false);         }          /// <summary>         /// 判断字符串是否在字符串中         /// </summary>         public static bool IsInArray(string s, string array, string splitStr, bool ignoreCase)         {             return IsInArray(s, StringHelper.SplitString(array, splitStr), ignoreCase);         }          /// <summary>         /// 判断字符串是否在字符串中         /// </summary>         public static bool IsInArray(string s, string array, string splitStr)         {             return IsInArray(s, StringHelper.SplitString(array, splitStr), false);         }          /// <summary>         /// 判断字符串是否在字符串中         /// </summary>         public static bool IsInArray(string s, string array)         {             return IsInArray(s, StringHelper.SplitString(array, ","), false);         }            /// <summary>         /// 将对象数组拼接成字符串         /// </summary>         public static string ObjectArrayToString(object[] array, string splitStr)         {             if (array == null || array.Length == 0)                 return "";              StringBuilder result = new StringBuilder();             for (int i = 0; i < array.Length; i++)                 result.AppendFormat("{0}{1}", array[i], splitStr);              return result.Remove(result.Length - splitStr.Length, splitStr.Length).ToString();         }          /// <summary>         /// 将对象数组拼接成字符串         /// </summary>         public static string ObjectArrayToString(object[] array)         {             return ObjectArrayToString(array, ",");         }          /// <summary>         /// 将字符串数组拼接成字符串         /// </summary>         public static string StringArrayToString(string[] array, string splitStr)         {             return ObjectArrayToString(array, splitStr);         }          /// <summary>         /// 将字符串数组拼接成字符串         /// </summary>         public static string StringArrayToString(string[] array)         {             return StringArrayToString(array, ",");         }          /// <summary>         /// 将整数数组拼接成字符串         /// </summary>         public static string IntArrayToString(int[] array, string splitStr)         {             if (array == null || array.Length == 0)                 return "";              StringBuilder result = new StringBuilder();             for (int i = 0; i < array.Length; i++)                 result.AppendFormat("{0}{1}", array[i], splitStr);              return result.Remove(result.Length - splitStr.Length, splitStr.Length).ToString();         }          /// <summary>         /// 将整数数组拼接成字符串         /// </summary>         public static string IntArrayToString(int[] array)         {             return IntArrayToString(array, ",");         }            /// <summary>         /// 移除数组中的指定项         /// </summary>         /// <param name="array">源数组</param>         /// <param name="removeItem">要移除的项</param>         /// <param name="removeBackspace">是否移除空格</param>         /// <param name="ignoreCase">是否忽略大小写</param>         /// <returns></returns>         public static string[] RemoveArrayItem(string[] array, string removeItem, bool removeBackspace, bool ignoreCase)         {             if (array != null && array.Length > 0)             {                 StringBuilder arrayStr = new StringBuilder();                 if (ignoreCase)                     removeItem = removeItem.ToLower();                 string temp = "";                 foreach (string item in array)                 {                     if (ignoreCase)                         temp = item.ToLower();                     else                         temp = item;                      if (temp != removeItem)                         arrayStr.AppendFormat("{0}_", removeBackspace ? item.Trim() : item);                 }                  return StringHelper.SplitString(arrayStr.Remove(arrayStr.Length - 1, 1).ToString(), "_");             }              return array;         }          /// <summary>         /// 移除数组中的指定项         /// </summary>         /// <param name="array">源数组</param>         /// <returns></returns>         public static string[] RemoveArrayItem(string[] array)         {             return RemoveArrayItem(array, "", true, false);         }          /// <summary>         /// 移除字符串中的指定项         /// </summary>         /// <param name="s">源字符串</param>         /// <param name="splitStr">分割字符串</param>         /// <returns></returns>         public static string[] RemoveStringItem(string s, string splitStr)         {             return RemoveArrayItem(StringHelper.SplitString(s, splitStr), "", true, false);         }          /// <summary>         /// 移除字符串中的指定项         /// </summary>         /// <param name="s">源字符串</param>         /// <returns></returns>         public static string[] RemoveStringItem(string s)         {             return RemoveArrayItem(StringHelper.SplitString(s), "", true, false);         }            /// <summary>         /// 移除数组中的重复项         /// </summary>         /// <returns></returns>         public static int[] RemoveRepeaterItem(int[] array)         {             if (array == null || array.Length < 2)                 return array;              Array.Sort(array);              int length = 1;             for (int i = 1; i < array.Length; i++)             {                 if (array[i] != array[i - 1])                     length++;             }              int[] uniqueArray = new int[length];             uniqueArray[0] = array[0];             int j = 1;             for (int i = 1; i < array.Length; i++)                 if (array[i] != array[i - 1])                     uniqueArray[j++] = array[i];              return uniqueArray;         }          /// <summary>         /// 移除数组中的重复项         /// </summary>         /// <returns></returns>         public static string[] RemoveRepeaterItem(string[] array)         {             if (array == null || array.Length < 2)                 return array;              Array.Sort(array);              int length = 1;             for (int i = 1; i < array.Length; i++)             {                 if (array[i] != array[i - 1])                     length++;             }              string[] uniqueArray = new string[length];             uniqueArray[0] = array[0];             int j = 1;             for (int i = 1; i < array.Length; i++)                 if (array[i] != array[i - 1])                     uniqueArray[j++] = array[i];              return uniqueArray;         }          /// <summary>         /// 去除字符串中的重复元素         /// </summary>         /// <returns></returns>         public static string GetUniqueString(string s)         {             return GetUniqueString(s, ",");         }          /// <summary>         /// 去除字符串中的重复元素         /// </summary>         /// <returns></returns>         public static string GetUniqueString(string s, string splitStr)         {             return ObjectArrayToString(RemoveRepeaterItem(StringHelper.SplitString(s, splitStr)), splitStr);         }          #endregion          /// <summary>         /// 去除字符串首尾处的空格、回车、换行符、制表符         /// </summary>         public static string TBBRTrim(string str)         {             if (!string.IsNullOrEmpty(str))                 return str.Trim().Trim('r').Trim('n').Trim('t');             return string.Empty;         }          /// <summary>         /// 去除字符串中的空格、回车、换行符、制表符         /// </summary>         public static string ClearTBBR(string str)         {             if (!string.IsNullOrEmpty(str))                 return _tbbrRegex.Replace(str, "");              return string.Empty;         }          /// <summary>         /// 删除字符串中的空行         /// </summary>         /// <returns></returns>         public static string DeleteNullOrSpaceRow(string s)         {             if (string.IsNullOrEmpty(s))                 return "";              string[] tempArray = StringHelper.SplitString(s, "rn");             StringBuilder result = new StringBuilder();             foreach (string item in tempArray)             {                 if (!string.IsNullOrWhiteSpace(item))                     result.AppendFormat("{0}rn", item);             }             if (result.Length > 0)                 result.Remove(result.Length - 2, 2);             return result.ToString();         }          /// <summary>         /// 获得指定数量的html空格         /// </summary>         /// <returns></returns>         public static string GetHtmlBS(int count)         {             if (count == 1)                 return "    ";             else if (count == 2)                 return "        ";             else if (count == 3)                 return "            ";             else             {                 StringBuilder result = new StringBuilder();                  for (int i = 0; i < count; i++)                     result.Append("    ");                  return result.ToString();             }         }          /// <summary>         /// 获得指定数量的htmlSpan元素         /// </summary>         /// <returns></returns>         public static string GetHtmlSpan(int count)         {             if (count <= 0)                 return "";              if (count == 1)                 return "<span></span>";             else if (count == 2)                 return "<span></span><span></span>";             else if (count == 3)                 return "<span></span><span></span><span></span>";             else             {                 StringBuilder result = new StringBuilder();                  for (int i = 0; i < count; i++)                     result.Append("<span></span>");                  return result.ToString();             }         }          /// <summary>         ///获得邮箱提供者         /// </summary>         /// <param name="email">邮箱</param>         /// <returns></returns>         public static string GetEmailProvider(string email)         {             int index = email.LastIndexOf('@');             if (index > 0)                 return email.Substring(index + 1);             return string.Empty;         }          /// <summary>         /// 转义正则表达式         /// </summary>         public static string EscapeRegex(string s)         {             string[] oList = { "\", ".", "+", "*", "?", "{", "}", "[", "^", "]", "$", "(", ")", "=", "!", "<", ">", "|", ":" };             string[] eList = { "\\", "\.", "\+", "\*", "\?", "\{", "\}", "\[", "\^", "\]", "\$", "\(", "\)", "\=", "\!", "\<", "\>", "\|", "\:" };             for (int i = 0; i < oList.Length; i++)                 s = s.Replace(oList[i], eList[i]);             return s;         }          /// <summary>         /// 将ip地址转换成long类型         /// </summary>         /// <param name="ip">ip</param>         /// <returns></returns>         public static long ConvertIPToLong(string ip)         {             string[] ips = ip.Split('.');             long number = 16777216L * long.Parse(ips[0]) + 65536L * long.Parse(ips[1]) + 256 * long.Parse(ips[2]) + long.Parse(ips[3]);             return number;         }          /// <summary>         /// 隐藏邮箱         /// </summary>         public static string HideEmail(string email)         {             int index = email.LastIndexOf('@');              if (index == 1)                 return "*" + email.Substring(index);             if (index == 2)                 return email[0] + "*" + email.Substring(index);              StringBuilder sb = new StringBuilder();             sb.Append(email.Substring(0, 2));             int count = index - 2;             while (count > 0)             {                 sb.Append("*");                 count--;             }             sb.Append(email.Substring(index));             return sb.ToString();         }          /// <summary>         /// 隐藏手机         /// </summary>         public static string HideMobile(string mobile)         {             if (mobile != null && mobile.Length > 10)                 return mobile.Substring(0, 3) + "*****" + mobile.Substring(8);             return string.Empty;         }          /// <summary>         /// 数据转换为列表         /// </summary>         /// <param name="array">数组</param>         /// <returns></returns>         public static List<T> ArrayToList<T>(T[] array)         {             List<T> list = new List<T>(array.Length);             foreach (T item in array)                 list.Add(item);             return list;         }          /// <summary>          /// DataTable转化为List         /// </summary>          /// <param name="dt">DataTable</param>          /// <returns></returns>          public static List<Dictionary<string, object>> DataTableToList(DataTable dt)         {             int columnCount = dt.Columns.Count;             List<Dictionary<string, object>> list = new List<Dictionary<string, object>>(dt.Rows.Count);             foreach (DataRow dr in dt.Rows)             {                 Dictionary<string, object> item = new Dictionary<string, object>(columnCount);                 for (int i = 0; i < columnCount; i++)                 {                     item.Add(dt.Columns[i].ColumnName, dr[i]);                 }                 list.Add(item);             }             return list;         }     }

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壳先生 » 字符如何操作普通帮助类?字符操作普通帮助类的方法(代码示例)

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