為什么沒有顯示出效果
<!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使網頁顯示動態效果并實現與用戶交互功能。</p>
? <script type="text/javascript">
? ?var mys=document.getElementById("con");
? ?mys.style.color:"red";
? ?mys.style.backgroundColor:"#CCC";
? ?//mys.style.display:"none";
? </script>
</body>
</html>
2019-07-24