onmouseover="this.stop()" onmouseout="this.start()">应该写在怎么位置

onmouseover="this.stop()" onmouseout="this.start()">应该写在怎么位置 onMouseOver=this.stop() onMouseOut=this.start() scrollamount marquee onmouseover="this.stop()"onmouseout="this.start()"为什 <marquee direction=up onMouseOver=this.stop() onMouseOut= 如题我就是不太理解onmouseout="mOut(this);" 和 onmouseover="mOver(this) JAVASCRIPT代码问题：onmouseover="mOver(this)" onmouseout="mOut(th onmouseover="nTabs(this, class="menu_list" onmouseover="this.className='menu_list act 请问这两句是什么意思span class="font">和onMouseOver="this.focus()"> onMouseOver="this.className='a1'"这句话是什么意思,this指什么?会有什么效果呢? Thread t = new Thread(this); t.start(); Everybody stop ask this question