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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>
- <span>1</span>
- <span>2</span>
- <span>3</span>
- <span>4</span>
- <span>5</span>
- <div class="btn1">啊啊啊</div>
- <script>
- // 获取同一元素所有标签
- console.log(document.querySelectorAll("span"));
- console.log(document.querySelectorAll(".btn1"));
- // console.log(document.getElementById("btn1"));
- // 添加节点内容
- var spanList = document.querySelectorAll("span");
- spanList[2].innerText = '我的'
- </script>
- </body>
- </html>
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