W3School TIY Editor
W3School 在线教程
改变方向
暗黑模式
运行代码
<html> <head> <script type="text/javascript" src="/jquery/jquery.js"></script> <script type="text/javascript"> $(document).ready(function(){ $("button").click(function(){ $("p").css("color","red"); }); }); </script> </head> <body> <p>This is a paragraph.</p> <p>This is another paragraph.</p> <button type="button">改变段落的颜色</button> </body> </html>