<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
<style>
.pname{
color:#f60;
}
</style>
</head>
<body>
<div id="div-01">Here is div-01</div>
<div id="div-02">Here is div-02</div>
<div id="div-03">Here is div-03</div>
<p class="pname">這是一個段落。</p>
<p>這是另一個段落。</p>
<button class="btn" onclick="show()">刪除所有 p 元素</button>
</body>
<script>
var pName=document.getElementsByClassName('pname')[0];
function show(){
pName.nextElementSibling.remove()
}
</script>
</html>