WinAPI 字符及字符串函数(10): lstrcpy - 复制字符串

unit Unit1;



interface



uses

  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,

  Dialogs, StdCtrls;



type

  TForm1 = class(TForm)

    Button1: TButton;

    Button2: TButton;

    Button3: TButton;

    procedure Button1Click(Sender: TObject);

    procedure Button2Click(Sender: TObject);

    procedure Button3Click(Sender: TObject);

  end;



var

  Form1: TForm1;



implementation



{$R *.dfm}



procedure TForm1.Button1Click(Sender: TObject);

var

  p,p1: PChar;

begin

  p1 := 'Delphi';

  GetMem(p, 256);



  lstrcpy(p, p1);

  ShowMessage(p); {Delphi}



  FreeMem(p);

end;



procedure TForm1.Button2Click(Sender: TObject);

var

  p,p1,p2: PChar;

begin

  p1 := 'Delphi';

  p2 := '2009';

  p := StrAlloc(256);



  lstrcpy(p, p1);

  lstrcpy(p, p2);

  ShowMessage(p); {2009}



  StrDispose(p);

end;



procedure TForm1.Button3Click(Sender: TObject);

var

  p: PChar;

  buf: array[0..255] of Char;

begin

  p := '万一的 Delphi 博客';

  lstrcpy(buf, p);

  ShowMessage(buf); {万一的 Delphi 博客}

end;



end.