<meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1.0, maximum-scale=1.0, user-scalable=no" />
<meta name="viewport" id="viewport" content="width=640px, user-scalable=no">
在<hred>中写上以上2行代码，body里面用iframe，就可以自适应了，我找了好多，才找到的