提交之后沒效果
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>style樣式</title>
</head>
<body>
? <h2 id="con">I love JavaScript</H2>
? <p> JavaScript使網(wǎng)頁顯示動態(tài)效果并實現(xiàn)與用戶交互功能。</p>
? <script type="text/javascript">
? ? var mychar= document.getElementById("con");
?mychar.style.color="red";
?mychar.style.backgroundColor="#ccc";
?mychar.style.width="300px";
?
? </script>
</body>
</html>
2016-01-10
有反應(yīng)啊