JS时间处理，兼容IOS

    timeFormatting(val) {

      let time = val.slice(0, 10)
        // 兼容IOS
      time = time.replace(/-/g, '/')

      let date = new Date(time);
      let Y = date.getFullYear()
      let M = date.getMonth() + 1
      let D = date.getDate()
      let h = (date.getHours() < 10) ? '0' + date.getHours() : date.getHours()
      let m = (date.getMinutes() < 10) ? '0' + date.getMinutes() : date.getMinutes()

      return Y + '年' + M + '月' + D + '日'

    },