为啥我的答案一次对一次错啊
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb18030">
<title>插入js代码</title>
<script type="text/javascript"></script>
<script>document.write("开启JS之旅!");</script>
</script>
</head>
<body>
</body>
</html>
