<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<div>
<ul>
<li>1</li>
<li>1</li>
<li>1</li>
<li>1</li>
<li>1</li>
<li>1</li>
<li>1</li>
<li>1</li>
</ul>
</div>
<script src="js/jquery-1.12.4.js"></script>
<script>
$(function () {
$("ul>li").each(function (index,ele) {
console.log(index);
console.log(ele);
/*$(ele).css("color","red");可以这样使用对象*/
console.dir(arguments[0]+"====="+arguments[1]);
})
/*index 序号 ele 该对象<li>1</li>*/
})
</script>
</body>
</html>
原文：https://www.cnblogs.com/cycczh/p/11333353.html