获取程序自身大小的2个函数

 unit Unit1;

interface

uses
  Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
  Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls;

type
  TForm1 = class(TForm)
    Edit1: TEdit;
    Edit2: TEdit;
    procedure FormCreate(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}
//
//网友修改后
function GetFileSize(const FileName: string): Int64;
var
  SR: TSearchRec;
begin
  Result := -1;
  if FindFirst(FileName, faAnyFile and (not faDirectory), SR) = 0 then
  try
    Result := SR.Size;
  finally
    FindClose(SR);
  end;
end;

//万老师 原函数
function GetExeSize: Int64;
var
  SearchRec: TSearchRec;
begin
  Result := -1;
  if FindFirst(Application.ExeName, faAnyFile, SearchRec) = 0 then
    Result := SearchRec.Size;
end;
procedure TForm1.FormCreate(Sender: TObject);
begin
Edit1.Text:= '万一的方法结果：' + IntToStr(getExesize);
Edit2.Text:= '在野修正后结果：' + IntToStr(GetFileSize(Application.ExeName));
end;

end.