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.