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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 class="box"></div>
- <script>
- var oBox = document.getElementsByClassName("box")[0];
- // oBox.innerHTML = "<h1>hello</h1>"
- // createElement 创建新的元素 可以对当前元素任意操作
- var oH1 = document.createElement("h1");
- oH1.innerText = "你好世界";
- oH1.style.color = "red";
- oBox.appendChild(oH1);
- oH1.onclick = function(){
- console.log("hello");
- }
- </script>
- </body>
- </html>
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