delphi重载程序

Question

我想重载类中的过程。为此我写道:

type 

  TMyClass = class(TObject)
  private...
  ...
  public 
   constructor create;
   destructor destroy;
   procedure dosomething(filename: string); overload;
   procedure dosomething(s: string; t: string; u: string); overload;


implementation

  procedure dosomething(filename:string);
  begin
  end;

  procedure dosomething(s: string; t: string; u: string);
  begin
  end;

但是delphi告诉我一个关于前向或外部声明错误的错误...

这是为什么？

提前致谢!

Answer 1

您必须添加类名...

implementation   

procedure TMyClass.dosomething(filename:string);    
begin    
end;

procedure TMyClass.dosomething(s: string; t: string; u: string);    
begin    

end;