记录安卓下滚动不支持document.documentElement的问题

documentElement在安卓手机下不支持，所以需要使用document.body.scrollTop

 

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handleScroll() {     let el = document.documentElement, body = document.body;     let scroTop = el.scrollTop || body.scrollTop;     let oHeight = this.$parent.getHeight();     this.distanceAll = oHeight + this.$refs.describe.offsetHeight;     if (scroTop >= this.distanceAll) {         this.isFixed = true;                    } else {         this.isFixed = false;                       } }