复制代码 代码如下:

<script type="text/javascript">

function jumpPage() {

if (event.keyCode==37)//左

fun_a();

if (event.keyCode==38)//上

fun_b();

if (event.keyCode==39)//右

fun_c();

if (event.keyCode==40)//下

fun_d();

}

function fun_a(){

window.alert('你按下了左')

}

function fun_b(){

window.alert('你按下了上')

}

function fun_c(){

window.alert('你按下了右')

}

function fun_d(){

window.alert('你按下了下')

}

document.onkeydown=jumpPage;

</script>

HTML code

复制代码 代码如下:

<table width="100%" border="1" cellspacing="1" cellpadding="0" id=table> <tr id="lineone"> <td id=aa height="23"></td> <td id=aa >按向下键</td> <td id=cc >按向下键</td> <td id=dd >按向下键</td> <td id=ee >按向下键</td> </tr> <tr id="linetwo" tyle="background-color:#ffffff;"> <td id=a height="23"></td> <td id=b >按向上键</td> <td id=c >按向上键</td> <td id=d >按向上键</td> <td id=e >按向上键</td> </tr></table><script language="javascript"> function keyDown(e) { var iekey=event.keyCode; action(iekey); } document.onkeydown = keyDown; function action(iekey) { if(iekey==40) { lineone.style.backgroundColor = ""; linetwo.style.backgroundColor = "#00cccc"; } if(iekey==38) { lineone.style.backgroundColor = "#00cccc"; linetwo.style.backgroundColor = ""; } } </script><input name="id" type="hidden" id="id" value