unit1.~pas

Delphi的函数例子

unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls;

type
  TForm1 = class(TForm)
    Button1: TButton;
    procedure Button1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;
  StrNew,s : PChar;
implementation

{$R *.dfm}

procedure TForm1.Button1Click(Sender: TObject);
var
  L:Cardinal;
  P:PChar;
begin
  S:='Delphi 程序设计';
  StrNew := nil;
  if(S<>nil)and(S[0]<>#0)then
  begin
    L:=StrLen(S)+1;
    GetMem(P,L);
    StrNew:=StrMove(P,S,L);
  end;
  ShowMessage(StrNew);
end;

end.