export function formatChangeTime(dateTimeStamp){// dateTimeStamp是一个时间毫秒，注意时间戳是秒的形式，在这个毫秒的基础上除以1000let minute = 1000 * 60;      //把分，时，天，周，半个月，一个月用毫秒表示let hour = minute * 60;let day = hour * 24;let week = day * 7;//var halfamonth = day * 15;let month = day * 30;let now = new Date().getTime();   //获取当前时间毫秒let diffValue = now - dateTimeStamp;//时间差if (diffValue < 0) { return; }let minC = diffValue / minute;  //计算时间差的分，时，天，周，月let hourC = diffValue / hour;let dayC = diffValue / day;let weekC = diffValue / week;let monthC = diffValue / month;let resultif (monthC >= 1) {result = "" + parseInt(monthC) + "月前";}else if (weekC >= 1) {result = "" + parseInt(weekC) + "周前";}else if (dayC >= 1) {result = "" + parseInt(dayC) + "天前";}else if (hourC >= 1) {result = "" + parseInt(hourC) + "小时前";}else if (minC >= 1) {result = "" + parseInt(minC) + "分钟前";} elseresult = "刚刚";return result;
}

使用：

filters: {

    timerChange(time, that) {

      if (time) {

        // 转为时间戳

        let twmpTime = new Date(time).getTime()

        return that.formatChangeTime(twmpTime)

      }

    },

  },

<el-table-column

        prop="timeDifference"

        label="更新时间"

        width="70">

        <template slot-scope="scope">

          <div>

            {{ scope.row.timeDifference | timerChange(that) }}

          </div>

        </template>

      </el-table-column>