多年积累的.net类库--字符串操作类,把字符串按照分隔符转换成 List等

using System; using System.Collections.Generic; using System.Text; using System.Text.RegularExpressions;namespace DotNet.Utilities {     /// <summary>     /// 字符串操作类    /// 1、GetStrArray(string str, char speater, bool toLower)  把字符串按照分隔符转换成 List     /// 2、GetStrArray(string str) 把字符串转 按照, 分割 换为数据    /// 3、GetArrayStr(List list, string speater) 把 List 按照分隔符组装成 string     /// 4、GetArrayStr(List list)  得到数组列表以逗号分隔的字符串    /// 5、GetArrayValueStr(Dictionary<int, int> list)得到数组列表以逗号分隔的字符串    /// 6、DelLastComma(string str)删除最后结尾的一个逗号    /// 7、DelLastChar(string str, string strchar)删除最后结尾的指定字符后的字符    /// 8、ToSBC(string input)转全角的函数(SBC case)     /// 9、ToDBC(string input)转半角的函数(SBC case)     /// 10、GetSubStringList(string o_str, char sepeater)把字符串按照指定分隔符装成 List 去除重复    /// 11、GetCleanStyle(string StrList, string SplitString)将字符串样式转换为纯字符串    /// 12、GetNewStyle(string StrList, string NewStyle, string SplitString, out string Error)将字符串转换为新样式    /// 13、SplitMulti(string str, string splitstr)分割字符串    /// 14、SqlSafeString(string String, bool IsDel)     /// </summary>     public class StringHelper     {         /// <summary>         /// 把字符串按照分隔符转换成 List         /// </summary>         /// <param name="str">源字符串</param>         /// <param name="speater">分隔符</param>         /// <param name="toLower">是否转换为小写</param>         /// <returns></returns>         public static List<string> GetStrArray(string str, char speater, bool toLower)         {             List<string> list = new List<string>();             string[] ss = str.Split(speater);             foreach (string s in ss)             {                 if (!string.IsNullOrEmpty(s) && s != speater.ToString())                 {                     string strVal = s;                     if (toLower)                     {                         strVal = s.ToLower();                     }                     list.Add(strVal);                 }             }             return list;         }         /// <summary>         /// 把字符串转 按照, 分割 换为数据        /// </summary>         /// <param name="str"></param>         /// <returns></returns>         public static string[] GetStrArray(string str)         {             return str.Split(new Char[] { ',' });         }         /// <summary>         /// 把 List<string> 按照分隔符组装成 string         /// </summary>         /// <param name="list"></param>         /// <param name="speater"></param>         /// <returns></returns>         public static string GetArrayStr(List<string> list, string speater)         {             StringBuilder sb = new StringBuilder();             for (int i = 0; i < list.Count; i++)             {                 if (i == list.Count - 1)                 {                     sb.Append(list[i]);                 }                 else                 {                     sb.Append(list[i]);                     sb.Append(speater);                 }             }             return sb.ToString();         }         /// <summary>         /// 得到数组列表以逗号分隔的字符串        /// </summary>         /// <param name="list"></param>         /// <returns></returns>         public static string GetArrayStr(List<int> list)         {             StringBuilder sb = new StringBuilder();             for (int i = 0; i < list.Count; i++)             {                 if (i == list.Count - 1)                 {                     sb.Append(list[i].ToString());                 }                 else                 {                     sb.Append(list[i]);                     sb.Append(",");                 }             }             return sb.ToString();         }         /// <summary>         /// 得到数组列表以逗号分隔的字符串        /// </summary>         /// <param name="list"></param>         /// <returns></returns>         public static string GetArrayValueStr(Dictionary<int, int> list)         {             StringBuilder sb = new StringBuilder();             foreach (KeyValuePair<int, int> kvp in list)             {                 sb.Append(kvp.Value + ",");             }             if (list.Count > 0)             {                 return DelLastComma(sb.ToString());             }             else             {                 return "";             }         }         #region 删除最后一个字符之后的字符        /// <summary>         /// 删除最后结尾的一个逗号        /// </summary>         public static string DelLastComma(string str)         {             return str.Substring(0, str.LastIndexOf(","));         }        /// <summary>         /// 删除最后结尾的指定字符后的字符        /// </summary>         public static string DelLastChar(string str, string strchar)         {             return str.Substring(0, str.LastIndexOf(strchar));         }        #endregion          /// <summary>         /// 转全角的函数(SBC case)         /// </summary>         /// <param name="input"></param>         /// <returns></returns>         public static string ToSBC(string input)         {             //半角转全角：            char[] c = input.ToCharArray();             for (int i = 0; i < c.Length; i++)             {                 if (c[i] == 32)                 {                     c[i] = (char)12288;                     continue;                 }                 if (c[i] < 127)                     c[i] = (char)(c[i] + 65248);             }             return new string(c);         }        /// <summary>         ///  转半角的函数(SBC case)         /// </summary>         /// <param name="input">输入</param>         /// <returns></returns>         public static string ToDBC(string input)         {             char[] c = input.ToCharArray();             for (int i = 0; i < c.Length; i++)             {                 if (c[i] == 12288)                 {                     c[i] = (char)32;                     continue;                 }                 if (c[i] > 65280 && c[i] < 65375)                     c[i] = (char)(c[i] - 65248);             }             return new string(c);         }        /// <summary>         /// 把字符串按照指定分隔符装成 List 去除重复        /// </summary>         /// <param name="o_str"></param>         /// <param name="sepeater"></param>         /// <returns></returns>         public static List<string> GetSubStringList(string o_str, char sepeater)         {             List<string> list = new List<string>();             string[] ss = o_str.Split(sepeater);             foreach (string s in ss)             {                 if (!string.IsNullOrEmpty(s) && s != sepeater.ToString())                 {                     list.Add(s);                 }             }             return list;         }         #region 将字符串样式转换为纯字符串        /// <summary>         ///  将字符串样式转换为纯字符串        /// </summary>         /// <param name="StrList"></param>         /// <param name="SplitString"></param>         /// <returns></returns>         public static string GetCleanStyle(string StrList, string SplitString)         {             string RetrunValue = "";             //如果为空，返回空值            if (StrList == null)             {                 RetrunValue = "";             }             else             {                 //返回去掉分隔符                string NewString = "";                 NewString = StrList.Replace(SplitString, "");                 RetrunValue = NewString;             }             return RetrunValue;         }         #endregion        #region 将字符串转换为新样式        /// <summary>         /// 将字符串转换为新样式        /// </summary>         /// <param name="StrList"></param>         /// <param name="NewStyle"></param>         /// <param name="SplitString"></param>         /// <param name="Error"></param>         /// <returns></returns>         public static string GetNewStyle(string StrList, string NewStyle, string SplitString, out string Error)         {             string ReturnValue = "";             //如果输入空值，返回空，并给出错误提示            if (StrList == null)             {                 ReturnValue = "";                 Error = "请输入需要划分格式的字符串";             }             else             {                 //检查传入的字符串长度和样式是否匹配,如果不匹配，则说明使用错误。给出错误信息并返回空值                int strListLength = StrList.Length;                 int NewStyleLength = GetCleanStyle(NewStyle, SplitString).Length;                 if (strListLength != NewStyleLength)                 {                     ReturnValue = "";                     Error = "样式格式的长度与输入的字符长度不符，请重新输入";                 }                 else                 {                     //检查新样式中分隔符的位置                    string Lengstr = "";                     for (int i = 0; i < NewStyle.Length; i++)                     {                         if (NewStyle.Substring(i, 1) == SplitString)                         {                             Lengstr = Lengstr + "," + i;                         }                     }                     if (Lengstr != "")                     {                         Lengstr = Lengstr.Substring(1);                     }                     //将分隔符放在新样式中的位置                    string[] str = Lengstr.Split(',');                     foreach (string bb in str)                     {                         StrList = StrList.Insert(int.Parse(bb), SplitString);                     }                     //给出最后的结果                    ReturnValue = StrList;                     //因为是正常的输出，没有错误                    Error = "";                 }             }             return ReturnValue;         }         #endregion        /// <summary>         /// 分割字符串        /// </summary>         /// <param name="str"></param>         /// <param name="splitstr"></param>         /// <returns></returns>         public static string[] SplitMulti(string str, string splitstr)         {             string[] strArray = null;             if ((str != null) && (str != ""))             {                 strArray = new Regex(splitstr).Split(str);             }             return strArray;         }         public static string SqlSafeString(string String, bool IsDel)         {             if (IsDel)             {                 String = String.Replace("'", "");                 String = String.Replace("\"", "");                 return String;             }             String = String.Replace("'", "'");             String = String.Replace("\"", """);             return String;         }        #region 获取正确的Id，如果不是正整数，返回0         /// <summary>         /// 获取正确的Id，如果不是正整数，返回0         /// </summary>         /// <param name="_value"></param>         /// <returns>返回正确的整数ID，失败返回0</returns>         public static int StrToId(string _value)         {             if (IsNumberId(_value))                 return int.Parse(_value);             else                 return 0;         }         #endregion         #region 检查一个字符串是否是纯数字构成的，一般用于查询字符串参数的有效性验证。        /// <summary>         /// 检查一个字符串是否是纯数字构成的，一般用于查询字符串参数的有效性验证。(0除外)         /// </summary>         /// <param name="_value">需验证的字符串。。</param>         /// <returns>是否合法的bool值。</returns>         public static bool IsNumberId(string _value)         {             return QuickValidate("^[1-9]*[0-9]*$", _value);         }         #endregion         #region 快速验证一个字符串是否符合指定的正则表达式。        /// <summary>         /// 快速验证一个字符串是否符合指定的正则表达式。        /// </summary>         /// <param name="_express">正则表达式的内容。</param>         /// <param name="_value">需验证的字符串。</param>         /// <returns>是否合法的bool值。</returns>         public static bool QuickValidate(string _express, string _value)         {             if (_value == null) return false;             Regex myRegex = new Regex(_express);             if (_value.Length == 0)             {                 return false;             }             return myRegex.IsMatch(_value);         }         #endregion         #region 根据配置对指定字符串进行 MD5 加密        /// <summary>         /// 根据配置对指定字符串进行 MD5 加密        /// </summary>         /// <param name="s"></param>         /// <returns></returns>         public static string GetMD5(string s)         {             //md5加密            s = System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(s, "md5").ToString();            return s.ToLower().Substring(8, 16);         }         #endregion        #region 得到字符串长度，一个汉字长度为2         /// <summary>         /// 得到字符串长度，一个汉字长度为2         /// </summary>         /// <param name="inputString">参数字符串</param>         /// <returns></returns>         public static int StrLength(string inputString)         {             System.Text.ASCIIEncoding ascii = new System.Text.ASCIIEncoding();             int tempLen = 0;             byte[] s = ascii.GetBytes(inputString);             for (int i = 0; i < s.Length; i++)             {                 if ((int)s[i] == 63)                     tempLen += 2;                 else                     tempLen += 1;             }             return tempLen;         }         #endregion        #region 截取指定长度字符串        /// <summary>         /// 截取指定长度字符串        /// </summary>         /// <param name="inputString">要处理的字符串</param>         /// <param name="len">指定长度</param>         /// <returns>返回处理后的字符串</returns>         public static string ClipString(string inputString, int len)         {             bool isShowFix = false;             if (len % 2 == 1)             {                 isShowFix = true;                 len--;             }             System.Text.ASCIIEncoding ascii = new System.Text.ASCIIEncoding();             int tempLen = 0;             string tempString = "";             byte[] s = ascii.GetBytes(inputString);             for (int i = 0; i < s.Length; i++)             {                 if ((int)s[i] == 63)                     tempLen += 2;                 else                     tempLen += 1;                try                 {                     tempString += inputString.Substring(i, 1);                 }                 catch                 {                     break;                 }                if (tempLen > len)                     break;             }            byte[] mybyte = System.Text.Encoding.Default.GetBytes(inputString);             if (isShowFix && mybyte.Length > len)                 tempString += "…";             return tempString;         }         #endregion         #region HTML转行成TEXT         /// <summary>         /// HTML转行成TEXT         /// </summary>         /// <param name="strHtml"></param>         /// <returns></returns>         public static string HtmlToTxt(string strHtml)         {             string[] aryReg ={             @"<script[^>]*?>.*?</script>",             @"<(\/\s*)?!?((\w+:)?\w+)(\w+(\s*=?\s*(([""'])(\\[""'tbnr]|[^\7])*?\7|\w+)|.{0})|\s)*?(\/\s*)?>",             @"([\r\n])[\s]+",             @"&(quot|#34);",             @"&(amp|#38);",             @"&(lt|#60);",             @"&(gt|#62);",              @"&(nbsp|#160);",              @"&(iexcl|#161);",             @"&(cent|#162);",             @"&(pound|#163);",             @"&(copy|#169);",             @"&#(\d+);",             @"-->",             @"<!--.*\n"             };            string newReg = aryReg[0];             string strOutput = strHtml;             for (int i = 0; i < aryReg.Length; i++)             {                 Regex regex = new Regex(aryReg[i], RegexOptions.IgnoreCase);                 strOutput = regex.Replace(strOutput, string.Empty);             }            strOutput.Replace("<", "");             strOutput.Replace(">", "");             strOutput.Replace("\r\n", "");             return strOutput;         }         #endregion        #region 判断对象是否为空        /// <summary>         /// 判断对象是否为空，为空返回true         /// </summary>         /// <typeparam name="T">要验证的对象的类型</typeparam>         /// <param name="data">要验证的对象</param>                 public static bool IsNullOrEmpty<T>(T data)         {             //如果为null             if (data == null)             {                 return true;             }            //如果为""             if (data.GetType() == typeof(String))             {                 if (string.IsNullOrEmpty(data.ToString().Trim()))                 {                     return true;                 }             }            //如果为DBNull             if (data.GetType() == typeof(DBNull))             {                 return true;             }            //不为空            return false;         }        /// <summary>         /// 判断对象是否为空，为空返回true         /// </summary>         /// <param name="data">要验证的对象</param>         public static bool IsNullOrEmpty(object data)         {             //如果为null             if (data == null)             {                 return true;             }            //如果为""             if (data.GetType() == typeof(String))             {                 if (string.IsNullOrEmpty(data.ToString().Trim()))                 {                     return true;                 }             }            //如果为DBNull             if (data.GetType() == typeof(DBNull))             {                 return true;             }            //不为空            return false;         }         #endregion     } }