// 根据素材编辑时间倒序排列
            this.tableData.sort((a, b) => {
                let aTimeString = a.updateTime;   //updateTime属于数组中的时间
                let bTimeString = b.updateTime;
                aTimeString = aTimeString.replace(/-/g, "/")
                bTimeString = bTimeString.replace(/-/g, "/")
                let aTime = new Date(aTimeString).getTime()
                let bTime = new Date(bTimeString).getTime()
                return bTime - aTime
            })