Practical numeric conversion (C #) Conversion

From http://www.cnitblog.com/hj627/

"

 Using  System;
  Using  System. Collections. Generic;
  Using  System. text;

  Namespace  CW
{

  Public     Class  Cash
{
  Private     Static    String  Moneynum  =     "    "  ;
  Private     Static     String  Moneyunit  =     " Million, billion  "  ;
  Private     Static     String  Cashunit  =     "  Yuan Jiao Ming  "  ;
  Private     Static    String  [] Beforereplace  =     New     String  [] {Moneynum [  0  ]. Tostring ()  +  Moneynum [  0  ]. Tostring (),
Moneyunit [  7 ]. Tostring ()  +  Moneynum [  0  ]. Tostring ()  +  Moneyunit [  3  ]. Tostring (),
Moneynum [  0  ]. Tostring ()  +  Moneyunit [  3 ]. Tostring (),
Moneynum [  0  ]. Tostring ()  +  Moneyunit [  7  ]. Tostring (),
Moneyunit [  7  ]. Tostring ()  +  Moneyunit [  3  ]. Tostring (),
Moneynum [ 0  ]. Tostring ()  +  Moneynum [  0  ]. Tostring (),
Moneynum [  0  ]. Tostring ()  +  Cashunit [  1  ]. Tostring ()  +  Moneynum [  0  ]. Tostring () +  Cashunit [  2  ]. Tostring (),
Moneynum [  0  ]. Tostring ()  +  Cashunit [  2  ]. Tostring ()
};
  Private     Static     String [] Afterreplace  =     New     String  [] {Moneynum [  0  ]. Tostring (),
Moneyunit [  7  ]. Tostring ()  +  Moneynum [  0 ]. Tostring (),
Moneyunit [  3  ]. Tostring ()  +  Moneynum [  0  ]. Tostring (),
Moneyunit [  7  ]. Tostring ()  +  Moneynum [  0  ]. Tostring (),
Moneyunit [ 7  ]. Tostring ()  +  Moneynum [  0  ]. Tostring (),
Moneynum [  0  ]. Tostring (),
String. empty,
String. Empty
};

  /**/  ///     <Summary> 
  ///  String replacement method. The other is a recursive method based on four numbers.
  ///  Create by HJ 2007-10-21
  ///     </Summary>  
  ///     <Param name = "moneynum"> </param>  
  ///     <Returns> </returns> 
     Public     Static     String  Getcash (  Decimal  Moneynum)
{
  String  Intnum, point;
  /**/  ///  Integer  
  Intnum =  Convert. tostring (math. Floor (moneynum ));
  /**/  ///  Decimal part  
  Point  =  Convert. tostring (math. Floor (moneynum  *     100  ));
Point  =  Point. substring (point. Length  -    2  );

  /**/  ///  Calculate integer  
    For  (  Int  I  =     0  ; I  <  Moneynum. length; I ++  )
{
Intnum  =  Intnum. Replace (I. tostring (), moneynum [I]. tostring ());
}
  Int  Intnumlength  =  Intnum. length;
  For  (  Int  I  =  Intnumlength  -    1  ; I  >     0  ; I  --  )
{  /**/  ///  Add Unit by number of digits
  ///  If the value is zero, no unit is added, but and need to be added.  
    If  (Intnum [I -     1  ]  =  Moneynum [  0  ]  &&  (Intnumlength  -  I  +     7  )  %    8     ! =     3     &&  (Intnumlength  -  I  +     7  )  %     8    ! =     7  )  Continue  ;
Intnum  =  Intnum. insert (I, moneyunit [(intnumlength  -  I  +     7  )  %     8 ]. Tostring ());
}

  /**/  ///  Unit of plus angle and score  
  Intnum  + =  Cashunit [  0  ]. Tostring ()  +  Moneynum. substring (convert. toint16 (point [  0  ]. Tostring ()),  1  ) +  Cashunit [  1  ]. Tostring ()  +  Moneynum. substring (convert. toint16 (point [  1  ]. Tostring ()),  1  )  +  Cashunit [  2  ]. Tostring ();

  /**/  /// Replace zero-> 0 billion 0 thousand-> 0 thousand zero, 0 billion-> zero,-> zero,-> "", zero point-> "", zero point-> zero point, and then call it again to ensure the situation after replacement of 0 thousand million  
    For  (  Int  I  =     0  ; I  <  Beforereplace. length; I  ++  )
{
 While  (Intnum. indexof (beforereplace [I])  >-  1  )
{
Intnum  =  Intnum. Replace (beforereplace [I], afterreplace [I]);
}
}

  /**/  ///  Remove the last Zero  
    If  (Intnum. endswith (moneynum [  0 ]. Tostring () intnum  =  Intnum. substring (  0  , Intnum. Length  -     1  );

  Return  Intnum  +  Cashunit [  3  ]. Tostring ();

}

}
} 

"