為什么不顯示呢
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>document.write</title>
? <script type="text/javascript">
? ? var mystr="我是";
? ? var mychar="JavaScript";
? ? document.write(mychar+"<br>");
? ? document.write(mastr+mychar+"的忠實粉絲！")；
? </script>
</head>
<body>
</body>
</html>
2018-03-03
thank you!
2018-03-03
?document.write(mastr+mychar+"的忠實粉絲！")；這行代碼的mystr打錯成mastr