fmpq.com
源代码：
点击运行
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>Fmpq教程(fmpq.com)</title> </head> <body id="myid" class="mystyle"> <script> var x=document.getElementsByTagName('body')[0]; document.write("Body 元素 CSS 类为: " + x.className); document.write("<br>"); document.write("另一种方式: "); document.write(document.getElementById('myid').className); </script> </body> </html>
运行结果