CSHARP: searching within a string

1    ///   <Summary>  2       ///  20130118  3       ///  Whether the search string exists  4       ///  Juwen youyou Computer Information Technology Co., Ltd.  5       ///  Jie Wei Studio  6       ///  </Summary>  7       Public   Class  Stringsearchclass  8   {  9           ///   <Summary>  10           ///  Search for strings  11           ///  Stringindexof "); 12           ///   </Summary>  13           ///   <Param name = "str1">  String  </Param>  14           ///   <Param name = "judgestr">Query  Character or string  </Param>  15           ///   <Returns> Whether the returned result exists  </Returns>  16           Public   Static   Bool Stringindexof ( String Str1, String  Searchstr)  17   {  18               Bool Isexist = True  ;  19 Str1 = "  ,  " + Str1 + "  ,  "  ;  20               String [] STRs = searchstr. Split ( New   Char [] { '  ,  '  }, Stringsplitoptions. removeemptyentries ); 21               Foreach ( String Strtemp In  STRs)  22   {  23                   If (Str1.indexof ( '  ,  ' + Strtemp + '  ,  ' ) =- 1 )  24   {  25 Isexist = False  ;  26                       Break  ;  27   }  28   }  29               Return  Isexist; 30   }  31           ///   <Summary>  32           ///  Search for strings  33           ///  Yan juwen  34           ///   </Summary>  35           ///   <Param name = "str1"> String  </Param>  36           ///   <Param name = "judgestr">Query  Character or string  </Param>  37           ///   <Returns> </returns>  38           Public   Static   Bool Stringcontains ( String Str1,String  Searchstr)  39   {  40               Bool Isexist = True  ;  41 Str1 = "  ,  " + Str1 + "  ,  "  ; 42               String [] STRs = searchstr. Split ( New   Char [] { '  ,  '  }, Stringsplitoptions. removeemptyentries );  43               Foreach ( String Strtemp In  STRs)  44   { 45                   If (! Str1.contains ( '  ,  ' + Strtemp + '  ,  '  ))  46   {  47 Isexist = False  ;  48                       Break ;  49   }  50   }  51               Return  Isexist;  52   }  53           ///   <Summary>  54           ///  Search for strings  55          ///  Yan juwen  56           ///   </Summary>  57           ///   <Param name = "str1">  String  </Param>  58           ///   <Param name = "judgestr">Query  Character or string  </Param>  59          ///   <Returns> </returns>  60           Public   Static   Bool Stringregex ( String Str1, String  Searchstr)  61   {  62               Bool Isexist = True  ;  63 Str1 = "  ,  " + Str1 + "  ,  "  ;  64               String [] STRs = searchstr. Split ( New   Char [] { '  ,  '  }, Stringsplitoptions. removeemptyentries ); 65               Foreach ( String Strtemp In  STRs)  66   {  67                   If (! RegEx. Match (str1, strtemp, regexoptions. ignorecase). Success)  68   {  69 Isexist = False  ; 70   }  71   }  72               Return  Isexist;  73   }  74 }

Zookeeper:

 1   //  Zookeeper  2 Stopwatch Sw = New  Stopwatch (); 3               4   Sw. Start ();  5              //  Bool S = stringindexof ");  //  True, time consumed: 00: 00: 00.0003557  6              //  Bool S = stringcontains ");  //  True, time consumed: 00: 00: 00.0003625  7               Bool S = stringregex ("  1, 2, 3, 4, 5, 6  " , "  1, 6  " ); //  False. Time consumed: 00: 00: 00.0286617  //  True, time consumed: 00: 00: 00.0008295  //  True, time consumed: 00: 00: 00.0008237  8   Sw. Stop ();  9              This . Textbox1.text = S. tostring () + "  , Time consumed:  " + Sw. elapsed. tostring ();