function TryStrToInt(const S: string, out Value: Integer): Boolean;
try strtoint(edit1.text); showmessage('Get a integer!'); except showmessage('the text of edit is not a integer!') end;
呵呵,又跟老大学到东西咯! 从D6开始支持,D5不支持!procedure TForm1.Button1Click(Sender: TObject); var i: Integer; begin if TryStrToInt(Edit1.Text, i) then ShowMessage('您输入的是数字'); end;
strtoint(edit1.text);
showmessage('Get a integer!');
except
showmessage('the text of edit is not a integer!')
end;
从D6开始支持,D5不支持!procedure TForm1.Button1Click(Sender: TObject);
var
i: Integer;
begin
if TryStrToInt(Edit1.Text, i) then
ShowMessage('您输入的是数字');
end;