<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<style>
body {
font-family: "Microsoft YaHei", serif;
}
body, dl, dd, p, h1, h2, h3, h4, h5, h6 {
margin: 0;
}
ol, ul, li {
margin: 0;
padding: 0;
list-style: none;
}
img {
border: none
}
</style>
</head>
<body>
<div id="wrap">
<p id="q1">111</p>
<p id="q2">222</p>
<p id="q3">333</p>
</div>
<script>
let oWrap = document.getElementById("wrap");
let q1 = document.getElementById("q1");
let q2 = document.getElementById("q2");
let q3 = document.getElementById("q3");
let p = document.createElement("p");
p.innerHTML = "新增标签";
// 添加p元素节点 逗号后边是你想添加到谁的前边
oWrap.insertBefore(p,q2)
</script>
</body>
</html>
Python3Turtle