選單渲染父節點。預設渲染到 body 上，如果你遇到選單滾動定位問題，試試修改為滾動的區域，並相對其定位。示例

<div style={{ padding: 100, height: 1000, background: '#eee', position: 'relative' }} id="area">
  <Select
     defaultValue="lucy"
     style={{ width: 120 }}
     getPopupContainer={() => document.getElementById('area')}
   >
     <Option
 
 value="jack">Jack</Option>
     <Option value="lucy">Lucy</Option>
     <Option value="yiminghe">yiminghe</Option>
   </Select>
 </div>

程式碼分解：

<div style={{ padding: 100, height: 1000, background: '#eee', position: 'relative' }} id="area">

</div>

  <Select
        getPopupContainer={()
 
 => document.getElementById('area')}
  >

  </Select>