<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
<script src="js/jquery-3.1.0.js" type="text/javascript" charset="utf-8"></script>
<script type="text/javascript">
$(document).ready(function(){
属性选择器
var $div = $('[id]');
console.log($div);
var $div = $('[id=div1]')
console.log($div)
只要id不等于div1，不管标签有无id属性，都会被选中
var $div = $('[id!=div1]')
console.log($div)
只要属性的值是以value指定的字符串开头，则都可以被选中
var $div = $('[id^=d]');
console.log($div);
var $div = $('[id*=i]')
console.log($div);
});
</script>
</head>
<body>
<div id="div1"></div>
<div id="div2"></div>
<a href="" id="d1"></a>
<div class="div3"></div>
<span id="div123456"></span>
</body>
</html>
