매우 실 용적 인 C\#문자열 작업 처리 클래스 StringHelper.cs

/// <summary> 
///    ：Assistant 
///      ：   
///     ：361983679  
///     ：http://www.sufeinet.com/thread-655-1-1.html 
/// </summary> 
using System; 
using System.Collections.Generic; 
using System.Text; 
using System.Text.RegularExpressions; 
 
namespace DotNet.Utilities 
{ 
  /// <summary> 
  ///        
  /// 1、GetStrArray(string str, char speater, bool toLower)              List 
  /// 2、GetStrArray(string str)         ,         
  /// 3、GetArrayStr(List list, string speater)   List          string 
  /// 4、GetArrayStr(List list)                 
  /// 5、GetArrayValueStr(Dictionary<int, int> list)                
  /// 6、DelLastComma(string str)            
  /// 7、DelLastChar(string str, string strchar)                
  /// 8、ToSBC(string input)      (SBC case) 
  /// 9、ToDBC(string input)      (SBC case) 
  /// 10、GetSubStringList(string o_str, char sepeater)              List      
  /// 11、GetCleanStyle(string StrList, string SplitString)              
  /// 12、GetNewStyle(string StrList, string NewStyle, string SplitString, out string Error)           
  /// 13、SplitMulti(string str, string splitstr)      
  /// 14、SqlSafeString(string String, bool IsDel) 
  /// </summary> 
  public class StringHelper 
  { 
    /// <summary> 
    ///              List 
    /// </summary> 
    /// <param name="str">    </param> 
    /// <param name="speater">   </param> 
    /// <param name="toLower">       </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> 
    ///         ,         
    /// </summary> 
    /// <param name="str"></param> 
    /// <returns></returns> 
    public static string[] GetStrArray(string str) 
    { 
      return str.Split(new Char[] { ',' }); 
    } 
    /// <summary> 
    ///   List<string>          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> 
    ///                 
    /// </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> 
    ///                 
    /// </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               
 
    /// <summary> 
    ///             
    /// </summary> 
    public static string DelLastComma(string str) 
    { 
      return str.Substring(0, str.LastIndexOf(",")); 
    } 
 
    /// <summary> 
    ///                 
    /// </summary> 
    public static string DelLastChar(string str, string strchar) 
    { 
      return str.Substring(0, str.LastIndexOf(strchar)); 
    } 
 
    #endregion 
 
    /// <summary> 
    ///       (SBC case) 
    /// </summary> 
    /// <param name="input"></param> 
    /// <returns></returns> 
    public static string ToSBC(string input) 
    { 
      //     ： 
      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> 
    ///       (SBC case) 
    /// </summary> 
    /// <param name="input">  </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> 
    ///               List      
    /// </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               
    /// <summary> 
    ///               
    /// </summary> 
    /// <param name="StrList"></param> 
    /// <param name="SplitString"></param> 
    /// <returns></returns> 
    public static string GetCleanStyle(string StrList, string SplitString) 
    { 
      string RetrunValue = ""; 
      //    ，     
      if (StrList == null) 
      { 
        RetrunValue = ""; 
      } 
      else 
      { 
        //        
        string NewString = ""; 
        NewString = StrList.Replace(SplitString, ""); 
        RetrunValue = NewString; 
      } 
      return RetrunValue; 
    } 
    #endregion 
 
    #region            
    /// <summary> 
    ///            
    /// </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 = ""; 
      //      ，   ，        
      if (StrList == null) 
      { 
        ReturnValue = ""; 
        Error = "             "; 
      } 
      else 
      { 
        //                 ,     ，       。            
        int strListLength = StrList.Length; 
        int NewStyleLength = GetCleanStyle(NewStyle, SplitString).Length; 
        if (strListLength != NewStyleLength) 
        { 
          ReturnValue = ""; 
          Error = "                 ，     "; 
        } 
        else 
        { 
          //             
          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); 
          } 
          //              
          string[] str = Lengstr.Split(','); 
          foreach (string bb in str) 
          { 
            StrList = StrList.Insert(int.Parse(bb), SplitString); 
          } 
          //        
          ReturnValue = StrList; 
          //        ，     
          Error = ""; 
        } 
      } 
      return ReturnValue; 
    } 
    #endregion 
 
    /// <summary> 
    ///       
    /// </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      Id，       ，  0 
    /// <summary> 
    ///      Id，       ，  0 
    /// </summary> 
    /// <param name="_value"></param> 
    /// <returns>       ID，    0</returns> 
    public static int StrToId(string _value) 
    { 
      if (IsNumberId(_value)) 
        return int.Parse(_value); 
      else 
        return 0; 
    } 
    #endregion 
    #region                 ，                 。 
    /// <summary> 
    ///                 ，                 。(0  ) 
    /// </summary> 
    /// <param name="_value">       。。</param> 
    /// <returns>     bool 。</returns> 
    public static bool IsNumberId(string _value) 
    { 
      return QuickValidate("^[1-9]*[0-9]*$", _value); 
    } 
    #endregion 
    #region                      。 
    /// <summary> 
    ///                      。 
    /// </summary> 
    /// <param name="_express">        。</param> 
    /// <param name="_value">       。</param> 
    /// <returns>     bool 。</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              MD5    
    /// <summary> 
    ///              MD5    
    /// </summary> 
    /// <param name="s"></param> 
    /// <returns></returns> 
    public static string GetMD5(string s) 
    { 
      //md5   
      s = System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(s, "md5").ToString(); 
 
      return s.ToLower().Substring(8, 16); 
    } 
    #endregion 
 
    #region        ，       2 
    /// <summary> 
    ///        ，       2 
    /// </summary> 
    /// <param name="inputString">     </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           
    /// <summary> 
    ///           
    /// </summary> 
    /// <param name="inputString">       </param> 
    /// <param name="len">    </param> 
    /// <returns>         </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   TEXT 
    /// <summary> 
    /// HTML   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
])[\s]+", 
      @"&(quot|#34);", 
      @"&(amp|#38);", 
      @"&(lt|#60);", 
      @"&(gt|#62);",  
      @"&(nbsp|#160);",  
      @"&(iexcl|#161);", 
      @"&(cent|#162);", 
      @"&(pound|#163);", 
      @"&(copy|#169);", 
      @"&#(\d+);", 
      @"-->", 
      @"<!--.*
" 
      }; 
 
      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
", ""); 
 
 
      return strOutput; 
    } 
    #endregion 
 
    #region          
    /// <summary> 
    ///         ，    true 
    /// </summary> 
    /// <typeparam name="T">         </typeparam> 
    /// <param name="data">      </param>     
    public static bool IsNullOrEmpty<T>(T data) 
    { 
      //   null 
      if (data == null) 
      { 
        return true; 
      } 
 
      //   "" 
      if (data.GetType() == typeof(String)) 
      { 
        if (string.IsNullOrEmpty(data.ToString().Trim())) 
        { 
          return true; 
        } 
      } 
 
      //   DBNull 
      if (data.GetType() == typeof(DBNull)) 
      { 
        return true; 
      } 
 
      //    
      return false; 
    } 
 
    /// <summary> 
    ///         ，    true 
    /// </summary> 
    /// <param name="data">      </param> 
    public static bool IsNullOrEmpty(object data) 
    { 
      //   null 
      if (data == null) 
      { 
        return true; 
      } 
 
      //   "" 
      if (data.GetType() == typeof(String)) 
      { 
        if (string.IsNullOrEmpty(data.ToString().Trim())) 
        { 
          return true; 
        } 
      } 
 
      //   DBNull 
      if (data.GetType() == typeof(DBNull)) 
      { 
        return true; 
      } 
 
      //    
      return false; 
    } 
    #endregion 
  } 
}