移动端 点击 定位指定滚动位置

示例：

        setScrollLeft(){
            let dataToday= new Date()
            let year = dataToday.getFullYear()
            let mounth = dataToday.getMonth()+1
            let data = dataToday.getDate()
            let dataTimes = year+'/'+mounth+'/'+data
            let dataChange  =  new Date(dataTimes).getTime()
            let dataTimeLast = this.selectDateFlag.replace(/-/g,'/')
            let dataNow = new Date(dataTimeLast).getTime()
            let dataNum = Math.ceil((dataNow - dataChange)/24/60/60)/1000 -1;
            // alert(dataTimeLast)
            document.getElementById("dataSliderConts").scrollLeft = dataNum*70;
            this.num = dataNum*70;
        },

注意：时间的兼容性 在ios上会有问题