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- <!DOCTYPE html>
- <html lang="en">
- <head>
- <meta charset="UTF-8">
- <meta name="viewport" content="width=device-width, initial-scale=1.0">
- <title>Document</title>
- </head>
- <body>
- <div id="box">
- <div> 你好 </div>
- </div>
- <script>
- var oBox = document.getElementById("box");
- // 创建元素
- var oH1 = document.createElement("h1");
- oH1.innerText = "hello world";
- oH1.style.color = "red";
- // 将元素插入到页面中 在当前标签的最后边
- oBox.append(oH1);
- </script>
- </body>
- </html>
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