鼠标经过改变表格背景属性实例

本文介绍了一种使用JavaScript实现HTML表格行鼠标悬停时的高亮显示效果的方法。通过简单的代码示例展示了如何为表格的每一行添加鼠标移入和移出事件,以改变其背景颜色。

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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>test</title>
<style type="text/css">
.tab table
{ border-collapse:collapse; width:500px;}
.tab td
{ border:1px solid #999; height:26px;}
</style>
</head>

<body>
<div  class="tab">
<table width="100%" cellspacing="0" cellpadding="0" id="tab">
 
<tr>
   
<td>&nbsp;</td>
   
<td>&nbsp;</td>
   
<td>&nbsp;</td>
   
<td>&nbsp;</td>
 
</tr>
 
<tr>
   
<td>&nbsp;</td>
   
<td>&nbsp;</td>
   
<td>&nbsp;</td>
   
<td>&nbsp;</td>
 
</tr>
 
<tr>
   
<td>&nbsp;</td>
   
<td>&nbsp;</td>
   
<td>&nbsp;</td>
   
<td>&nbsp;</td>
 
</tr>
 
<tr>
   
<td>&nbsp;</td>
   
<td>&nbsp;</td>
   
<td>&nbsp;</td>
   
<td>&nbsp;</td>
 
</tr>
</table>
</div>
<script type="text/javascript">
var t=document.getElementById("tab");
var tr=t.rows;
for(i=0;i<tr.length;i++){
tr[i].onmouseover
=Function("c("+i+")");
tr[i].onmouseout
=Function("r("+i+")");
}
function c(n){
   
if(n+1>tr.length-1){n=n-1}
    tr[n].style.background
='#F00';
    tr[n
+1].style.background='#F00';
}
function r(n){
   
if(n+1>tr.length-1){n=n-1}
    tr[n].style.background
='none';
    tr[n
+1].style.background='none';
}
</script>
</body>
</body>
</html>

 

 

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>test</title>
<style type="text/css">
.tab table
{ border-collapse:collapse; width:500px;}
.tab td
{ border:1px solid #999; height:26px;}
</style>
</head>

<body>
<div  class="tab">
<table width="100%" cellspacing="0" cellpadding="0" id="tab">
 
<tr>
   
<td>&nbsp;</td>
   
<td>&nbsp;</td>
   
<td>&nbsp;</td>
   
<td>&nbsp;</td>
 
</tr>
 
<tr>
   
<td>&nbsp;</td>
   
<td>&nbsp;</td>
   
<td>&nbsp;</td>
   
<td>&nbsp;</td>
 
</tr>
 
<tr>
   
<td>&nbsp;</td>
   
<td>&nbsp;</td>
   
<td>&nbsp;</td>
   
<td>&nbsp;</td>
 
</tr>
 
<tr>
   
<td>&nbsp;</td>
   
<td>&nbsp;</td>
   
<td>&nbsp;</td>
   
<td>&nbsp;</td>
 
</tr>
 
<tr>
   
<td>&nbsp;</td>
   
<td>&nbsp;</td>
   
<td>&nbsp;</td>
   
<td>&nbsp;</td>
 
</tr>
 
<tr>
   
<td>&nbsp;</td>
   
<td>&nbsp;</td>
   
<td>&nbsp;</td>
   
<td>&nbsp;</td>
 
</tr>
 
<tr>
   
<td>&nbsp;</td>
   
<td>&nbsp;</td>
   
<td>&nbsp;</td>
   
<td>&nbsp;</td>
 
</tr>
 
<tr>
   
<td>&nbsp;</td>
   
<td>&nbsp;</td>
   
<td>&nbsp;</td>
   
<td>&nbsp;</td>
 
</tr>
 
<tr>
   
<td>&nbsp;</td>
   
<td>&nbsp;</td>
   
<td>&nbsp;</td>
   
<td>&nbsp;</td>
 
</tr>
 
<tr>
   
<td>&nbsp;</td>
   
<td>&nbsp;</td>
   
<td>&nbsp;</td>
   
<td>&nbsp;</td>
 
</tr>
</table>
</div>
<script type="text/javascript">
var t=document.getElementById("tab");
var tr=t.rows;
for(i=0;i<tr.length;i++){
tr[i].onmouseover
=Function("c("+i+")");
tr[i].onmouseout
=Function("r("+i+")");
}
function c(n){
   
if((n)%2!=0){n=n-1}
    tr[n].style.background
='#F00';
    tr[n
+1].style.background='#F00';
}
function r(n){
   
if((n)%2!=0){n=n-1}
    tr[n].style.background
='none';
    tr[n
+1].style.background='none';
}
</script>
</body>
</body>
</html>

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