<el-table
      :data="elList"
      :span-method="arraySpanMethod" 
      border
      style="width: 1000px">
      <el-table-column
        prop="line"
        label="线路"
        width="180">
          <template slot-scope="scope">
            <span >{{ scope.row.line || scope.row.total }}</span>
          </template>
      </el-table-column>
      <el-table-column
        prop="station"
        label="站点">
      </el-table-column>
      <el-table-column
        prop="count"
        sortable
        label="投入车辆">
      </el-table-column>
      <el-table-column
        prop="yunci"
        sortable
        label="运次">
      </el-table-column>
      <el-table-column
        prop="upscan"
        sortable
        label="上车扫码人数">
      </el-table-column>
      <el-table-column
        prop="downscan"
        sortable
        label="下车扫码人数">
      </el-table-column>
      <el-table-column
        prop="money"
        sortable
        label="金额">
      </el-table-column>
    </el-table>

1 合并行的处理（比较循环中行的数据）

    getSpanArr(data) {
      for (var i = 0; i < data.length; i++) {
        if (i === 0) {
          this.spanArr.push(1);
          this.pos = 0;
        } else {
          // 判断当前元素与上一个元素是否相同（line为标记）
          if (data[i].line === data[i - 1].line) {
            this.spanArr[this.pos] += 1;
            this.spanArr.push(0);
          } else {
            this.spanArr.push(1);
            this.pos = i;
          }
        }
      }
    },

    arraySpanMethod({ row, column, rowIndex, columnIndex }) {
       //处理行的合并
      if (this.indexArr.includes(rowIndex)) {
        if (columnIndex === 0) {
          return {
            rowspan: 1,
            colspan: 4
          };
        } else if (columnIndex === 1 || columnIndex === 2 || columnIndex == 3) {
          return {
            rowspan: 0,
            colspan: 0
          };
        }
      }
      //处理列的合并
      if (columnIndex === 0 || columnIndex === 2 || columnIndex === 3) {
        const _row = this.spanArr[rowIndex];
        const _col = _row > 0 ? 1 : 0;
        return {
          rowspan: _row,
          colspan: _col
        };
      }
    },

  created() {
    this.getSpanArr(this.elList);
    this.elList.map((v, i, s) => {
      if (v.total === "总计") {
        this.indexArr.push(i);
      }
    });
  },

data中数据

      indexArr: [],
      spanArr: [],
      pos: 0,
      elList: [
      	{
			line: '线路一（去城区）',
			station: '首都机场t1',
			count: 60,
			yunci: 55,
			upscan:2222,
			downscan: 1333,
			money: 100
		},
		{
			line: '线路一（去城区）',
			station: '首都机场t2',
			count: 60,
			yunci: 55,
			upscan:22322,
			downscan: 333,
			money: 100
		},
		{
			line: '线路一（去城区）',
			station: '首都机场t3',
			count: 60,
			yunci: 55,
			upscan:3422,
			downscan: 3133,
			money: 1300
		},
		{
			line: '线路一（去城区）',
			station: 'A',
			count: 60,
			yunci: 55,
			upscan:21242,
			downscan: 33413,
			money: 1040
		},
		{
			line: '线路一（去城区）',
			station: 'A',
			count: 60,
			yunci: 55,
			upscan:21242,
			downscan: 33413,
			money: 1040
		},
		{
			line: '线路一（去城区）',
			station: 'B',
			count: 60,
			yunci: 55,
			upscan:12322,
			downscan: 3333,
			money: 1100
		},
		{ 
			total: '总计',
			totalupscan:12322,
			totaldownscan: 3333,
			totalmoney: 1100
		},
        {
			line: '线路二（去城区）',
			station: '首都机场t1',
			count: 60,
			yunci: 55,
			upscan:2222,
			downscan: 1333,
			money: 100
		},
		{
			line: '线路二（去城区）',
			station: '首都机场t2',
			count: 60,
			yunci: 55,
			upscan:22322,
			downscan: 333,
			money: 100
		},
		{
			line: '线路二（去城区）',
			station: '首都机场t3',
			count: 60,
			yunci: 55,
			upscan:3422,
			downscan: 3133,
			money: 1300
		},
		{
			line: '线路二（去城区）',
			station: 'A',
			count: 60,
			yunci: 55,
			upscan:21242,
			downscan: 33413,
			money: 1040
		},
		{
			line: '线路二（去城区）',
			station: 'A',
			count: 60,
			yunci: 55,
			upscan:21242,
			downscan: 33413,
			money: 1040
        },
		{
			line: '线路二（去城区）',
			station: 'B',
			count: 60,
			yunci: 55,
			upscan:12322,
			downscan: 3333,
			money: 1100
        },
        { 
			total: '总计',
		    totalupscan:12322,
			totaldownscan: 3333,
			totalmoney: 1100
		}
          	
    ],