jQuery与原生JS实现表格奇偶行背景色交替

jQuery实现表格奇偶行背景色

JQuery实现方案：

 
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>New Web Project</title>
<script type="text/javascript" src="jquery-core/jquery-1.8.0.js"></script>
<script type="text/javascript">
$(function(){
//可选方式:$('#t1 tbody tr:even').css('background','red');
$('#t1 > tbody tr:even').css('background','red');
$('#t1 > tbody tr:odd').css('background','blue');
}); 
</script>
</head>
<body>
<table id="t1" width="500px" align="center">
<tbody>
<tr><td>aaaaaaa</td></tr>
<tr><td>bbbbbbb</td></tr>
<tr><td>ccccccc</td></tr>
<tr><td>ddddddd</td></tr>
<tr><td>eeeeeee</td></tr>
<tr><td>fffffff</td></tr>
<tr><td>ggggggg</td></tr>
<tr><td>hhhhhhh</td></tr>
</tbody>
</table>
</body>
</html>

原生JavaScript实现表格奇偶行背景色

原生JS实现方案：

 
<span style="color:#333333;"><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>New Web Project</title>
<script type="text/javascript">
//页面加载完成事件
window.onload=function(){
//获取表格元素
var tb1 = document.getElementById("t1");
//获取表格中的tbody节点
var tbody = tb1.getElementsByTagName("tbody")[0];
//获取所有tr元素
var trs = tbody.getElementsByTagName("tr");
//根据行号奇偶性设置不同背景色
for(var i=0; i<trs.length;i++){
if(i%2==0){
trs[i].style.backgroundColor="red";
}else{
trs[i].style.backgroundColor="blue";
} 
} 
} 
</script>
</head>
<body>
<table id="t1" width="500px" align="center">
<tbody>
<tr><td>aaaaaaa</td></tr>
<tr><td>bbbbbbb</td></tr>
<tr><td>ccccccc</td></tr>
<tr><td>ddddddd</td></tr>
<tr><td>eeeeeee</td></tr>
<tr><td>fffffff</td></tr>
<tr><td>ggggggg</td></tr>
<tr><td>hhhhhhh</td></tr>
</tbody>
</table>
</body>
</html>