MUI沉浸式代码

         var ben_immer = (function() {

             var immersed = 0;
             var ms = (/Html5Plus\/.+\s\(.*(Immersed\/(\d+\.?\d*).*)\)/gi).exec(navigator.userAgent);

             var set_immersed = function() {

                 if(ms && ms.length >= 3) {
                     immersed = parseFloat(ms[2]);
                 }

                 var cc = 40 + immersed;
                 var t = document.getElementsByClassName('mui-bar-nav');
                 t[0] && (t[0].style.paddingTop = immersed + 'px');
                 t[0] && (t[0].style.height = (44 + immersed) + 'px');

             }

             return {
                 set_immersed: set_immersed
             }

         })();

         ben_immer.set_immersed()