大家进来看看，散分！！！！

各位兄弟！
我随便写了一点点，可是总是无法安装进去。
谢谢各位指点了。
原代码如下：
unit QMy_Memo;interfaceuses
  SysUtils, Classes, QControls, QStdCtrls;type
  TMy_Memo = class(TMemo)
  private
    FXm:String;
    FXh:String;
    FDh:string;
    procedure SetXm(value:string);
    procedure SetXh(value:string);
    procedure SetDh(value:String);    { Private declarations }
  protected
    { Protected declarations }
  public
    constructor Create(AOwner: TComponent);override;
    destructor Destroy; override;
                                :
    { Public declarations }
  published
    property Xm:string read FXm write SetXm;
    property Xh:string read FXh write SetXh;
    property Dh:string read FDh write setDh;
    { Published declarations }
  end;procedure Register;implementationprocedure Register;
begin
  RegisterComponents('My_Pleate', [TMy_Memo]);
end; procedure TMy_Memo.SetXm(value:string);
 begin
   if FXm<>value then
   FXm:=value; end; procedure TMy_Memo.SetXh(value:string);
 begin
   if FXh<> value  then
   FXh:=value;
 end; procedure TMy_Memo.SetDh(value:string);
 begin
   if FDh<> value  then
   FDh:= value;
 end;
constructor TMy_Memo.Create(AOwner: TComponent);
begin
  Inherited Create(AOwner);
end;destructor TMy_Memo.Destroy;
begin
  inherited;
end;end.