Question

Delphi定义全局变量的问题

static int a = 2;
int b = a + 2;
这两个都是全局变量，关键是这个b，Delphi中如何如何定义？

Answer 1

你那个是C语言的吧
interface

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

type
TForm1 = class(TForm)
btn1: TButton;
btn2: TButton;
btn3: TButton;
tmr1: TTimer;
procedure btn1Click(Sender: TObject);
procedure btn2Click(Sender: TObject);
procedure tmr1Timer(Sender: TObject);
procedure FormCreate(Sender: TObject);

private
{ Private declarations }
public
{ Public declarations }
end;
procedure AutoFreeFile();
var
Form1: TForm1;
//在这里定义 a,b:integer;
implementation

然后在需要调用的 a,b的单元的 uses 下应该 该单元即可