更新dom节点
<!DOCTYPE html>
<html lang="en">
<head><meta charset="UTF-8"><title>Title</title>
</head>
<body><div id="id1"></div><script>let id1 = document.getElementById("id1");// 操作文本id1.innerText = "246" // 修改文本的值id1.innerHTML = "<strong>3333</strong>" // 解析HTML文本标签// 操作JSid1.style.color = 'yellow'id1.style.fontSize = '20px'id1.style.padding ='2em'
</script>
</body>
</html>
https://www.bilibili.com/video/BV1JJ41177di?p=21
