将h5用HBuilderX打包成安卓app后，document.documentElement.scrollTop的值始终为0或者document.body.scrollTop始终为0

 1 　　　　　let time = setInterval(() => {
 2             let scroll = document.documentElement.scrollTop || document.body.scrollTop;//解决scrollTop始终为零，尽此行代码
 3             if (scroll <= 100) {
 4               clearInterval(time);
 5             } else {
 6               if (scroll >= 200) {
 7                 document.documentElement.scrollTop = scroll -= Math.ceil(
 8                   scroll / 30
 9                 );
10                 document.body.scrollTop = scroll -= Math.ceil(
11                   scroll / 30
12                 );
13               } else {
14                 clearInterval(time);
15               }
16             }
17           }, 10);