String string replacement

Address: http://www.vimer.cn/2009/11/string%E6%9B%BF%E6%8D%A2%E6%89%80%E6%9C%89%E6%8C%87%E5% AE %9A%E5%AD%97%E7%AC%A6%E4%B8%B2%EF%BC%88c%EF%BC%89.html

 # Include  <  String  >  

# Include  <  Iostream  >  

  Using    Namespace  STD;

  String Replace_all (  String  STR,  Const    String  Old_value,  Const    String  New_value)

{

  While (  True  ){

  String  : Size_type pos (  0  );

  If  (Pos  =  Str. Find (old_value ))  ! = String  : NPOs)

Str. Replace (Pos, old_value.length (), new_value );

  Else    Break  ;

}

 Return  STR;

}

  String  Replace_all_distinct (  String  STR,  Const    String  Old_value,  Const    String New_value)

{

  For  (  String  : Size_type pos (  0  ); POS  ! =  String  : NPOs; POS  + = New_value.length ()){

  If  (Pos  =  Str. Find (old_value, POS ))  ! =  String  : NPOs)

Str. Replace (Pos, old_value.length (), new_value );

  Else   Break  ;

}

  Return  STR;

}

  Int Main ()

{

Cout  <  Replace_all (  String  (  "  12212  "  ),  "  12 "  ,  "  21  "  )  <  Endl;

Cout  <  Replace_all_distinct (  String  (  "  12212  " ),  "  12  "  ,  "  21  "  )  <  Endl; 

End