<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<script src="//libs.baidu.com/jquery/1.10.2/jquery.min.js">
</script>
<script>
$(document).ready(function(){
$("button").click(function(){
$("#div1").load("/statics/demosource/demo_test.txt #p1");
});
});
</script>
</head>
<body>
<div id="div1"><h2>使用 jQuery AJAX 修改文本</h2></div>
<button>获取外部文本</button>
</body>
</html>