procedure TForm1.BitBtn1Click(Sender: TObject);
var
i:integer;
j:string;
begin
i:=i+1;
j:=inttostr(i);
form1.Caption:=j;
end;
为什么一点击caption上显示的是:14109429?????
请高手指点!
var
i:integer;
j:string;
begin
i:=i+1;
j:=inttostr(i);
form1.Caption:=j;
end;
为什么一点击caption上显示的是:14109429?????
请高手指点!
procedure TForm1.BitBtn1Click(Sender: TObject);
var
i:integer;
j:string;
begin
i:=0;
i:=i+1;
j:=inttostr(i);
form1.Caption:=j;
end;
i:integer;
j:string;
begin
i := 0;
i:=i+1;
j:=inttostr(i);
form1.Caption:=j;
end
---------
用一个全局变量
在FormCreate或者FormShow的时候初始化为0
var
i:integer;
j:string;
begin
i:=StrToIntDef(form1.Caption,0);
i:=i+1;
j:=inttostr(i);
form1.Caption:=j;
end;
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, OleServer, Excel2000, StdCtrls;type
TForm1 = class(TForm)
Button1: TButton;
procedure Button1Click(Sender: TObject);
procedure FormCreate(Sender: TObject);
private
{ Private declarations }
i:integer;
public
{ Public declarations }
end;var
Form1: TForm1;implementation{$R *.dfm}procedure TForm1.Button1Click(Sender: TObject);
var
j : string;
begin
inc(i);
j := inttostr(i);
form1.Caption := j;
end;procedure TForm1.FormCreate(Sender: TObject);
begin
i := 0;
end;end.