在 js 中写这个来判断

    1.         window.onload = function() {
    2.             $(function() {
    3.                 //判断手机环境
    4.                 var u = navigator.userAgent, app = navigator.appVersion;
    5.                 var isAndroid = u.indexOf('Android') > -1 || u.indexOf('Linux') > -1; //android终端或者uc浏览器
    6.                 var isiOS = !!u.match(/\(i[^;]+;( U;)? CPU.+Mac OS X/); //ios终端
    7.                 var isiosapp = u.indexOf('Safari') == -1 && u.indexOf('Language') == -1 && u.indexOf('MicroMessenger') == -1;
    8.                 var isanapp = u.indexOf('igetapp') > -1;
    9.                 function is_weixn(){
    10.                     var ua = navigator.userAgent.toLowerCase();
    11.                     if(ua.match(/MicroMessenger/i)=="micromessenger"){
    12.                         return true;
    13.                     } else {
    14.                         return false;
    15.                     };
    16.                 };
    18.                 //图片懒加载
    19.                 $('.lazyload').lazyload();
    20.                 if(isiOS && !isiosapp && !is_weixn()) {
    21.                     //IOS LIU IOS 的操作
    22.                     $('.btn').click(function(){
    23.                         window.location.href = 'http://ttts.besttoptoday.com/pay/hyzfZc?ucid=BZSFSLHQIH';
    24.                     })
    25.                 } else if(isAndroid && !isanapp && !is_weixn()) {
    26.                     //android liu
    27.                     $('.btn').click(function(){
    28.                         window.location.href = 'http://ttts.besttoptoday.com/pay/hyzfZc?ucid=BZSFSLHQIH';
    29.                     })
    30.                 } else if(is_weixn()) {
    31.                     //weixin
    32.                     $('.btn').click(function(){
    33.                         window.location.href = 'http://ttts.besttoptoday.com/pay/hyzfZc?ucid=BZSFSLHQIH';
    34.                     })
    35.                 } else if(isiOS && isiosapp && !is_weixn()) {
    36.                     // ios app
    37.                     $('.btn').hide();
    38.                 } else if(isAndroid && isanapp && !is_weixn()) {
    39.                     //android app
    40.                     $('.btn').hide();
    41.                     /* $('.read_btn').click(function(){
    42.                         window.local_obj.runOnAndroidJS_SpecialColum('134');
    43.                     }) */
    44.                 }
    46.                 if(isAndroid && isanapp){
    47.                     function toptodayandroid(top){
    48.                         var bb = top;
    49.                         $(".bbh_p").text(bb);
    50.                         if(bb>=43){
    51.                             var bt = document.title;
    52.                             var fb = document.getElementById('shortTitle').innerText;
    53.                             var pic = document.getElementById('picture').src;
    54.                             function chc(){
    55.                                 window.local_obj.getShareInfo(bt,fb,pic);
    56.                             };
    57.                             chc();
    58.                         };
    59.                     };
    60.                 }
    62.                 if(isiOS && screen.height >= 812 && isiosapp && !is_weixn()){
    63.                     //iphone x app
    64.                     $('.wrap').css("margin-top","84px"); // iphone x 的最上面会被遮盖
    65.                     var oMeta = document.createElement('meta');
    66.                     oMeta.content = 'width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no,viewport-fit=cover';
    67.                     oMeta.name = 'viewport';
    68.                     document.getElementsByTagName('head')[0].appendChild(oMeta);
    69.                 };
    70.                 // 小手机适配
    71.                 if ((screen.width <= 340 && !is_weixn())||(screen.width <= 340 && !is_weixn())) {
    72.                     //iphone 5 app
    73.                     var oMeta = document.createElement('meta');
    74.                     oMeta.content = 'width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no,viewport-fit=cover';
    75.                     oMeta.name = 'viewport';
    76.                     document.getElementsByTagName('head')[0].appendChild(oMeta);
    78.                     $(".content").css({marginTop: '4%'})
    79.                     $(".rule").css({paddingBottom: '0'})
    80.                     $(".iddv").css({position: 'relative', bottom: '0', marginTop: '10%' })
    81.                     $(".btn").css({position: 'relative', bottom: '0', marginTop: '3%'})
    82.               };
    83.             })
    84.         }