筛选省市后，再次更换省份后，市未清除数据

components/filter/compoents/regionItem/index.tsx

@@ -10,6 +10,7 @@ type Props = {
 export default function RegionItem(props: Props) {
   const [provinceList, setProvinceList] = useState<RegionResp[]>([]);
   const [cityList, setCityList] = useState<RegionResp[]>([]);
+  const [selectCity, setSelectCity] = useState<number>()
   useEffect(() => {
     api.region().then((res) => {
       setProvinceList(res?.result || []);
@@ -19,11 +20,13 @@ export default function RegionItem(props: Props) {
   const onProvinceChange = (value: number, item: any) => {
     console.log("省", value, item);
     setCityList(item.childInfo || []);
+    setSelectCity(undefined);
     props.onChange(item);
   };
 
   const onCityChange = (value: number, item: any) => {
     console.log("市", value);
+    setSelectCity(value);
     props.onChange(item);
   };
   return (
@@ -45,6 +48,7 @@ export default function RegionItem(props: Props) {
             })}
           />
           <Select
+            value={selectCity}
             bordered={false}
             popupMatchSelectWidth={false}
             placeholder="选择市"