JavaScript基础19——innerHTML示例

 1 <!DOCTYPE html>
 2 <html>
 3     <head>
 4         <meta charset="UTF-8">
 5         <title>innerHTML示例</title>
 6     </head>
 7     <body>
 8         <span id="spanId">哈哈呵呵</span>
 9         <script type="text/javascript">
10             var span = document.getElementById("spanId");
11             document.write("<br />原始值:" + span.innerHTML);
12             span.innerHTML = "<h1>Hello World!</h1>";
13             document.write("<br />修改后:" + span.innerHTML);
14         </script>
15     </body>
16 </html>

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原文地址：https://www.cnblogs.com/linyisme/p/5865348.html