TStrings是个抽象类，于是我建立了一个子类
可是编译的时候还是报
FLines := THexStrings.Create;   // 这句产生Warning
[Warning] HexView.pas(263):
Constructing instance of 'THexStrings' containing abstract methods
  
THexStrings = class(TStrings)
private
  // Memo: TCustomMemo;
protected
   procedure Put(Index: Integer; const S: string); override;
   procedure SetTextStr(const Value: string); override;
   procedure SetUpdateState(Updating: Boolean); override;
public
   procedure Clear; override;
   procedure Delete(Index: Integer); override;
   procedure Insert(Index: Integer; const S: string); override;
end;

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