间接将上面的代码放到 网页中即可

<script>    //获取浏览器的userAgent,并转化为小写    var ua = navigator.userAgent.toLowerCase();    //判断是否是苹果手机,是则是true    var isIos = (ua.indexOf('iphone') != -1) || (ua.indexOf('ipad') != -1);    if(isIos){        console.log('做苹果手机兼容');    }else{        console.log('做安卓');    }</script>