一个分隔字符串的函数，并显示出分隔符的个数

此函数用来分隔字符串，如“#ddfd##dfsdf###”，分隔符为“#”，用函数分隔后结果为：1ddfd2dfsdf3

函数详细内容：

 

代码

   
     

    
      
    
      set
    
       ANSI_NULLS 
    
      ON
    
      

    
      set
    
       QUOTED_IDENTIFIER 
    
      ON
    
      

    
      go
    
      



    
      --
    
       =============================================
    
      
--
    
       Author: <高龙>
    
      
--
    
       Create date: <2010-09-22>
    
      
--
    
       Description: <拆分字符串，并得到区分字符串的字符的个数>
    
      
--
    
      字符串格式：#到了极点###得分偶尔偶尔##发了的肌肤###的决定###### （其中#的个数不确定也无规律，并且字符结尾可以是#也可以是文字）
    
      
--
    
       =============================================
    
      

    
      ALTER
    
       
    
      FUNCTION
    
       
    
      [
    
      dbo
    
      ]
    
      .
    
      [
    
      funSplitString
    
      ]
    
      
(
 
    
      @strString
    
       
    
      VARCHAR
    
      (
    
      MAX
    
      ),
    
      @strChar
    
       
    
      VARCHAR
    
      (
    
      1
    
      )
)

    
      RETURNS
    
       
    
      VARCHAR
    
      (
    
      MAX
    
      )

    
      AS
    
      

    
      BEGIN
    
      
 
    
      DECLARE
    
       
    
      @i
    
       
    
      INT
    
      ;
 
    
      DECLARE
    
       
    
      @count
    
       
    
      INT
    
      ;
 
    
      DECLARE
    
       
    
      @strReturn
    
       
    
      VARCHAR
    
      (
    
      MAX
    
      );
 
    
      DECLARE
    
       
    
      @subString
    
       
    
      VARCHAR
    
      (
    
      1000
    
      );
 
 
    
      SET
    
       
    
      @subString
    
       
    
      =
    
       
    
      ''
    
      ;
 
    
      SET
    
       
    
      @strReturn
    
       
    
      =
    
       
    
      ''
    
      ;
 
    
      SET
    
       
    
      @count
    
       
    
      =
    
       
    
      0
    
      ;
 
    
      SET
    
       
    
      @i
    
       
    
      =
    
       
    
      CHARINDEX
    
      (
    
      @strChar
    
      ,
    
      @strString
    
      );
 
    
      WHILE
    
       
    
      @i
    
       
    
      >=
    
       
    
      0
    
      
 
    
      BEGIN
    
      
 
    
      IF
    
       
    
      @i
    
       
    
      =
    
       
    
      1
    
      
 
    
      BEGIN
    
      
 
    
      SET
    
       
    
      @count
    
       
    
      =
    
       
    
      @count
    
       
    
      +
    
       
    
      1
    
      ;
 
    
      SET
    
       
    
      @strString
    
       
    
      =
    
       
    
      SUBSTRING
    
      (
    
      @strString
    
      ,
    
      2
    
      ,
    
      LEN
    
      (
    
      @strString
    
      ) 
    
      -
    
       
    
      1
    
      );
 
    
      SET
    
       
    
      @i
    
       
    
      =
    
       
    
      CHARINDEX
    
      (
    
      @strChar
    
      ,
    
      @strString
    
      );
 
    
      END
    
      
 
    
      ELSE
    
      
 
    
      BEGIN
    
      
 
    
      IF
    
       
    
      @i
    
       
    
      =
    
       
    
      0
    
      
 
    
      BEGIN
    
      
 
    
      SET
    
       
    
      @strReturn
    
       
    
      =
    
       
    
      @strReturn
    
       
    
      +
    
       
    
      CONVERT
    
      (
    
      VARCHAR
    
      (
    
      50
    
      ),
    
      @count
    
      );
 
    
      BREAK
    
      ;
 
    
      END
    
      
 
    
      SET
    
       
    
      @subString
    
       
    
      =
    
       
    
      SUBSTRING
    
      (
    
      @strString
    
      ,
    
      1
    
      ,
    
      @i
    
       
    
      -
    
       
    
      1
    
      );
 
    
      SET
    
       
    
      @strReturn
    
       
    
      =
    
       
    
      @strReturn
    
       
    
      +
    
       
    
      CONVERT
    
      (
    
      VARCHAR
    
      (
    
      50
    
      ),
    
      @count
    
      ) 
    
      +
    
       
    
      @subString
    
      ;
 
    
      SET
    
       
    
      @strString
    
       
    
      =
    
       
    
      SUBSTRING
    
      (
    
      @strString
    
      ,
    
      @i
    
      ,
    
      LEN
    
      (
    
      @strString
    
      ) 
    
      -
    
       
    
      LEN
    
      (
    
      @subString
    
      ));
 
    
      SET
    
       
    
      @i
    
       
    
      =
    
       
    
      CHARINDEX
    
      (
    
      @strChar
    
      ,
    
      @strString
    
      );
 
    
      SET
    
       
    
      @count
    
       
    
      =
    
       
    
      0
    
      ;
 
    
      END
    
      
 
    
      END
    
      
 
 
    
      RETURN
    
       
    
      @strReturn
    
      ;

    
      END