代码写的够乱，多了个html标记，少了个head是不是写错了
<html> <head> </html> <body>This is Default.htm
<!--include file="file1.htm"-->
</body>
</html>
<html> <head> </html> <body>This is Default.htm
<!--include file="file1.htm"-->
</body>
</html>
<title>无标题页</title>
</head>
<body>
<p>This is Default.htm</p>
<iframe id="iframe1" src="file1.htm" scrolling="auto" frameborder="0"></iframe>
</body>
</html>要用iframe哦，你写的那个是一段注释，起不到作用的~