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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(){ $(document.createElement("div")).replaceAll("p"); }); }); </script> <style> div{height:20px;background-color:yellow;margin:10px;} </style> </head> <body> <p>This is a paragraph.</p> <p>This is another paragraph.</p> <button class="btn1">用新的 div 替换所有段落</button> </body> </html>
查看结果: