<!DOCTYPE html>
<html>
<head>
<meta charset=”UTF-8″>
<title></title>
<style type=”text/css”>
span {
cursor: pointer;
}
</style>
<script type=”text/javascript”>
window.onload = function () {
// 获取元素
var stars = document.getElementById(‘stars’).getElementsByTagName(‘span’);
var ret = document.getElementById(‘ret’);
//定义getStar函数
function getStar(n){
var n = parseInt(n);
for(var i =0; i < stars.length; i++){
if(i <= n-1){
stars[i].style.color = ‘red’;
}
else{
stars[i].style.color = ”;
}
}
}
// 每个星星节点的点击事件
for( var i =0; i < stars.length;i++){
stars[i].onclick = function(){
getStar(this.getAttribute(‘star’));
}
}
}
</script>
</head>
<body>
<div id=”stars”>
<span star=”1″>★</span>
<span star=”2″>★</span>
<span star=”3″>★</span>
<span star=”4″>★</span>
<span star=”5″>★</span>
</div>
<div id=”ret”></div>
</body>
</html>
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