1. if (n - Trunc(n) > 0) then ShowMessage('小数') else showmessage('整数'); 2. procedure TForm1.Btn1Click(Sender: TObject); begin Btn2Click(self); end;procedure TForm1.Btn2Click(Sender: TObject); begin showmessage('Hello'); end;
var vstr:string; vsstr:='2.3'; if Pos('.',vsstr)>0 then showmessage('实数') else showmessage('整数'); vsstr:='2'; if Pos('.',vsstr)>0 then showmessage('实数') else showmessage('整数');
procedure TForm1.Button1Click(Sender: TObject);
begin
Button2Click(nil);
end;
procedure TForm1.Btn1Click(Sender: TObject);
begin
Btn2Click(self);
end;procedure TForm1.Btn2Click(Sender: TObject);
begin
showmessage('Hello');
end;
var vstr:string;
vsstr:='2.3';
if Pos('.',vsstr)>0 then
showmessage('实数')
else
showmessage('整数');
vsstr:='2';
if Pos('.',vsstr)>0 then
showmessage('实数')
else
showmessage('整数');