ListArea组件的使用，实现表格每项向上滚动

<div className={s.head}>
  {
    structure.map(si =>
      <div key={si.key} className={s.col} style={{width:si.width}}>
        {si.name}
      </div>,
    )
  }
</div>

structure: [
  {
    name: ‘单位‘,
    width: ‘50%‘,
    key: ‘dw‘,
    ),
  }, {
    name: ‘问题‘,
    width: ‘50%‘,
    key: ‘wt‘,
    formatter: (l, i) =>(
    <span className={s.itemCol}>
      {l.wt}
    </span>
    ),
  },
]

<ListArea
    className={s.body}
    isSuspend={true}
    contentCount={this.lxNum}
    list={list}
    item={(l, i, ref, currentIndex) =>
      <div key={i} ref={ref} className={s.row}>
        <div className={s.rowHead}>
          {
            structure.map(si =>
              <div key={si.key} className={s.col} style={{width:si.width,}}>
                {si.formatter ? si.formatter(l, i) : l[si.key]}
              </div>,
            )
          }
        </div>
      </div>
    }
/>