<!DOCTYPE HTML> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>style样式</title> </head> <body> <h2 id="con">I love JavaScript</H2> <p> JavaScript使网页显示动态效果并实现与用户交互功能。</p> <script type="text/javas"cript"> var mychar = document.getElementById("con"); mychar.style.color="red"; mychar.style.backgroundColor ="#ccc"; /*mychar.style.display="none";*/ </script> </body> </html>
第10行,<script type="text/javas"cript">改为<script type="text/javascript">
<script type="text/javascript">你的双引号有问题