<!doctype html>
<html>
<head>
<meta charset="utf-8" />
<title>Demo</title>
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<script>
var headings = $('h3');
var paras = $('p');
paras.hide().eq(0).show();
headings.click(function() {
var cur = $(this); //save the element that has been clicked for easy referal
cur.siblings('p').hide(); //hide all the paragraphs
cur.next('p').show(); //get the next paragraph after the clicked header and show it
});
</script>
<style type="text/css">
p,h3 {margin: 0; padding: 0;}
p {height: 150px; width: 200px; border: 1px solid black;}
h3 {height: 50px; width: 200px; background-color: blue; color: white; border: 1px solid black;}
</style>
</head>
<body>
<h3>Item 1 </h3>
<p>Item 1 content</p>
<h3>Item 2 </h3>
<p>Item 2 content</p>
<h3>Item 3 </h3>
<p>Item 3 content</p>
<h3>Item 4</h3>
<p>Item 4 content</p>
</body>
</html>
以上代码摘自:http://www.1stwebdesigner.com/tutorials/jquery-for-complete-beginners-part-3/
题:
对于这一行:var cur = $(this);我知道this意味着h3已被点击,但为什么我们不能这样写:这里和这里有什么var cur = this;区别？this$(this)