fix

src/components/BuildingSelect/index.jsx

   const [visible, setVisible] = useState(false)
   const [loading, setLoading] = useState(false)
   const [val, setVal] = useState({ buildingName: '意向楼盘' })
+  const [buildingTitle, setBuildingTitle] = useState({ buildingName: '意向楼盘' })
 
   useEffect(() => {
     if (dicts) {
     const buildingId = e.detail.value
     const building = dicts.filter(x => x.buildingId === buildingId)[0] || { buildingName: '意向楼盘' }
 
-    setVal(building)
+    setBuildingTitle(building)
+
   }
   const handleSubmit = (e) => {
     e.stopPropagation()
     setVisible(false)
+    setVal(buildingTitle)
+
     onChange(val.buildingId, val)
   }
 
               <view className='frame'>
                 {/* 标题  */}
                 <view className='title-wrapper'>
-                  <view>{val.buildingName}</view>
+                  <view>{buildingTitle.buildingName}</view>
                 </view>
                 {/* 内容 */}
                 <view style='overflow-x: hidden;'>
                   {/* <view className='bottom-text' onClick={handleTextNext}> */}
                   <view style={{ display: 'flex', margin: '2em auto' }}>
                     <Button className='checkBtn' onClick={() => setVisible(false)}  >取消</Button>
-                    <Button className='okBtn' disabled={!val.buildingId} onClick={handleSubmit}> 确定</Button>
+                    <Button className='okBtn' disabled={!buildingTitle.buildingId} onClick={handleSubmit}> 确定</Button>
                   </view>
                   {/* <view className='Btn'>
                     <Button onClick={() => setVisible(false)} >取消</Button>