property active:boolean read factive write setactive default false;
property ontimeout:tnotifyevent read ftimeout write ftimeout;
//显式祖先类的一些属性在对象察看器中
property bevelinner;
property bevelouter;
property bevelwidth;
property color;
property font;
property popupmenu;
property showhint;
property taborder;
property tabstop;
property visible;
property onclick;
property ondblclick;
property onmousedown;
property onmousemove;
property onmouseup;
end;
implementation
//构造函数，继承父类的构造函数，并初始化类中的成员。
constructor ttimecount.create(aowner:tcomponent);
//创建时间控件并设置相关的参数
procedure createtimer;
