function columns(vm) {
  const cols = [
    {
      title: '序号',
      key: 'rowIndex',
      width: 60,
      align: 'center',
      customRender: function(t, r, index) {
        return parseInt(index) + 1
      }
    },
    {
      title: '车间',
      align: 'center',
      dataIndex: 'bm',
      key: 'bm'
    },
    {
      title: '线别',
      align: 'center',
      dataIndex: '',
      key: ''
    },
    {
      title: '区间站场',
      align: 'center',
      dataIndex: 'zhanqujian',
      key: 'zhanqujian'
    },
    {
      title: '行别',
      align: 'center',
      dataIndex: 'xingbie',
      key: 'xingbie'
    },
    {
      title: '分相名称',
      align: 'center',
      dataIndex: 'fenxiang',
      key: 'fenxiang'
    },
    {
      title: '支柱号范围',
      align: 'center',
      dataIndex: 'zzhfw',
      key: 'zzhfw'
    },
    {
      title: '磁枕里程',
      align: 'center',
      dataIndex: '',
      key: ''
    },
    {
      title: '设备编号',
      align: 'center',
      dataIndex: '',
      key: ''
    },
    {
      title: '操作',
      dataIndex: 'action',
      align: 'center',
      slots: { title: 'actionName' },
      scopedSlots: { customRender: 'action' }
    }
  ]
  return cols
}

export default columns