W3School TIY Editor
W3School 在线教程
改变方向
暗黑模式
运行代码
<html> <head> <meta name="keywords" content="HTML, DHTML, CSS, XHTML, JavaScript" /> </head> <body> <script type="text/javascript"> x=document.getElementsByTagName("meta")[0]; document.write("Meta content: " + x.content); </script> </body> </html>