<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
</head>
<body>
<a myAttr='hehe' id="myAttr"></a>
</body>
<script src="js/jquery.min.js"></script>
<script type="text/javascript">
$(function(){
console.log($('a').attr("myAttr"));
console.log(document.getElementById('myAttr').getAttribute('myAttr'));
});
</script>
</html>
结果图: