vxe-table合并行数据

      <vxe-table
        border
        resizable
        height="500"
        :scroll-y="{enabled: false}"
        :span-method="mergeRowMethod"
        :data="tableData3"
      >
        <vxe-column type="seq" width="60" />
        <vxe-column field="key" title="设备名称" />
        <vxe-column field="num" title="Num" />
        <vxe-column field="content" title="Translate" />
        <vxe-column field="language" title="Language">
          <template v-slot="{ row }">
            <div @click="getRow(row)">{{ row.language }}</div>
          </template>
        </vxe-column>
        <vxe-column field="key" title="操作">
          <template v-slot="{ row }">
            <div @click="getRow(row)">获取数据</div>
          </template>
        </vxe-column>
      </vxe-table>







    tableData3: []







    getDataList2() {
      this.tableData3 = [
        { id: 10001, key: 'app.label.name', num: 1, content: '名称', language: '1' },
        { id: 10002, key: 'app.label.name', num: 1, content: 'Name', language: '2' },
        { id: 10003, key: 'app.label.name', num: 1, content: '性别', language: '3' },
        { id: 10004, key: 'app.label.name', num: 1, content: 'Sex', language: '4' },
        { id: 10005, key: 'app.label.age', num: 3, content: '年龄', language: '5' },
        { id: 10006, key: 'app.label.age', num: 3, content: 'Age', language: '6' },
        { id: 10007, key: 'app.label.role', num: 4, content: '角色', language: '7' },
        { id: 10008, key: 'app.label.role', num: 4, content: 'Role', language: '8' },
        { id: 10009, key: 'app.label.address', num: 5, content: '地址', language: '9' },
        { id: 10010, key: 'app.label.address', num: 5, content: 'Address', language: '10' },
        { id: 10011, key: 'app.label.nickname', num: 6, content: '昵称', language: '11' },
        { id: 10012, key: 'app.label.nickname', num: 6, content: 'Nickname', language: '12' }
      ]
    },
    // 通用行合并函数（将相同多列数据合并为一行）
    mergeRowMethod({ row, _rowIndex, column, visibleData }) {
      console.log(row, _rowIndex, column, visibleData)
      const fields = ['key', 'num']
      const cellValue = row[column.field]
      if (cellValue && fields.includes(column.field)) {
        const prevRow = visibleData[_rowIndex - 1]
        let nextRow = visibleData[_rowIndex + 1]
        if (prevRow && prevRow[column.field] === cellValue) {
          return { rowspan: 0, colspan: 0 }
        } else {
          let countRowspan = 1
          while (nextRow && nextRow[column.field] === cellValue) {
            nextRow = visibleData[++countRowspan + _rowIndex]
          }
          if (countRowspan > 1) {
            return { rowspan: countRowspan, colspan: 1 }
          }
        }
      }
    },
    getRow(row) {
      console.log(row)
    },