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;
  private
    { Private declarations }
    function GetStr:PChar;
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

function TForm1.GetStr: PChar;
var
  yourstr:string;
begin
  yourstr:='Goditistoobad';
  try
  GetMem(result,length(yourstr)+1);
  except
    result:=nil;
  end;
  if assigned(result)then begin
  StrPLCopy(result,yourstr,length(yourstr));
  result[length(yourstr)]:=#0;
  end;
end;

end.