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编辑您的代码：
<html> <head> <script type="text/javascript" src="../jquery/jquery.js"></script> <script type="text/javascript"> $(document).ready(function(){ $(".btn1").click(function(){ $("p").wrap("<div></div>"); }); }); </script> <style type="text/css"> div{background-color:yellow;} </style> </head> <body> <p>This is a paragraph.</p> <p>This is another paragraph.</p> <button class="btn1">用 div 包裹每个段落</button> </body> </html>
查看结果: