1 <!DOCTYPE html>
2 <html lang="en">
3 <head>
4 <meta charset="UTF-8">
5 <title>Document</title>
6 <script type="text/javascript">
7 window.onload = function(){
8 var oDiv = document.getElementById('div1');
9 var sTr = oDiv.innerHTML;
10 alert(sTr);
11 oDiv.innerHTML = '这是改写后的内容';
12 // 甚至可以直接塞入一个html语句
13 oDiv.innerHTML = "<a href='https://www.baidu.com'>这是百度div</a>";
14
15 }
16 </script>
17 </head>
18 <body>
19 <div id="div1">这是一个div元素</div>
20 </body>
21 </html>