<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>菜鳥教程(runoob.com)</title> <script src="https://cdn.staticfile.org/jquery/1.10.2/jquery.min.js"> </script> <script> $(document).ready(function(){ $("button").click(function(){ $("p").removeAttr("id class"); }); }); </script> <style type="text/css"> #p1{ color:white; background-color:green; font-size:20px; padding:5px; } .blue{ color:white; background-color:blue; font-size:20px; padding:5px; } </style> </head> <body> <h1>這是一個標題</h1> <p id="p1">這是一個段落。</p> <p class="blue">這是另一個段落。</p> <button>移除所有P元素的id和類屬性</button> </body> </html>