antd InputNumber 不允许输入小数

< Form.Item 
          name = "restnum"
          label = "商品库存"  
          style={{display:'inline-block',width:'375px'}} >
           <InputNumber 
                placeholder = "请输入商品库存" 
                style={{width:'315px'}}
                precision={0}
                        />
   </Form.Item>

划重点：precision={0}