复制代码代码如下:
<html xmlns = "http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv = "content-type" content = "text /html ؛ charset = utf-8" />
<title> js 取模隔行变色 </title>
<script type = "text/javaScript">
window.onload = function ()
{
var oul = document.getElementById ('ul1') ؛
var ali = oul.getElementsByTagname ('li') ؛
لـ (var i = 0 ؛ i <ali .length ؛ i ++)
{
إذا (i ٪ 2 == 0) // 取模 求余数
{
علي [i] .style.background = 'red' ؛
}
}
}
</script>
</script> </head>
<body>
<ul id = "ul1">
<li> WebTall </li>
<li> WebTall </li>
<li> WebTall </li>
<li> WebTall </li>
<li> WebTall </li>
</ul>
</body>
</html>