他倒计时,你正着写 var Form1: TForm1; i:integer; implementation {$R *.dfm} i是一个全局变量初始值为1; ==================================== procedure TForm1.Timer1Timer(Sender: TObject); begin showmessage(inttostr(i)); if i<3 then i:=i+1 else begin showmessage('计时完成'); timer1.Enabled:=false end; end;
类似的例程, 楼主可以自行修改。var Form1: TForm1; aa:integer; implementation{$R *.DFM}procedure TForm1.Button1Click(Sender: TObject); begin aa:=3;end;procedure TForm1.Timer1Timer(Sender: TObject); begin if aa=1 then begin showmessage('time stop'); timer1.enabled:=false; end else aa:=aa-1end;end.
你想用FOR语句循环三秒钟??P4和386的“三秒钟”时间是不一样的:):)
procedure TForm1.FormCreate(Sender: TObject); var time1:Tdatetime ; begin time1 :=time; while SecondsBetween(time,time1) <3 do; do what you do......... end;
var
Form1: TForm1;
i:integer;
implementation
{$R *.dfm}
i是一个全局变量初始值为1;
====================================
procedure TForm1.Timer1Timer(Sender: TObject);
begin
showmessage(inttostr(i));
if i<3 then i:=i+1 else
begin
showmessage('计时完成');
timer1.Enabled:=false
end;
end;
楼主可以自行修改。var
Form1: TForm1;
aa:integer;
implementation{$R *.DFM}procedure TForm1.Button1Click(Sender: TObject);
begin
aa:=3;end;procedure TForm1.Timer1Timer(Sender: TObject);
begin
if aa=1 then
begin
showmessage('time stop');
timer1.enabled:=false;
end
else
aa:=aa-1end;end.
procedure TForm1.FormCreate(Sender: TObject);
var time1:Tdatetime ;
begin
time1 :=time;
while SecondsBetween(time,time1) <3 do;
do what you do.........
end;