diff --git a/src/hooks/storageDep.ts b/src/hooks/storageDep.ts
index b70704a..b0e9c89 100644
--- a/src/hooks/storageDep.ts
+++ b/src/hooks/storageDep.ts
@@ -1,26 +1,57 @@
 import Taro from "@tarojs/taro";
 
-const KET = 'SELECTDEP'
+const KET = 'SELECT_DEP'
+const KET_REQUIRED = 'SELECT_REQUIRED'
 
+/** 部门 */
 function set(data: number[]) {
   Taro.setStorageSync(KET, data)
 }
 
-function remove() {
-  Taro.removeStorageSync(KET)
-}
 
 function get(): number[] {
   const deps = Taro.getStorageSync(KET)
   if (deps && deps.length) {
-    remove()
+    removeDeps()
     return deps
   }
   return []
 }
 
+
+function removeDeps() {
+  Taro.removeStorageSync(KET)
+}
+
+/** 必修选修 */
+function removeRequired() {
+  Taro.removeStorageSync(KET_REQUIRED)
+}
+
+function setRequired(data: number[]) {
+  Taro.setStorageSync(KET_REQUIRED, data)
+}
+
+
+/** getRequired 比 set后调用 */
+function getRequired(): (0 | 1)[] {
+  const deps = Taro.getStorageSync(KET_REQUIRED)
+  if (deps && deps.length) {
+    removeRequired()
+    return deps
+  }
+  return []
+}
+
+function remove() {
+  removeRequired()
+  removeDeps()
+}
+
 export default {
   set,
   get,
-  remove
+  remove,
+  setRequired,
+  getRequired
 }
diff --git a/src/pages/manage/selectDep/selectDep.tsx b/src/pages/manage/selectDep/selectDep.tsx
index eb7597a..f5bbf4f 100644
--- a/src/pages/manage/selectDep/selectDep.tsx
+++ b/src/pages/manage/selectDep/selectDep.tsx
@@ -7,16 +7,22 @@ import folder from "@/static/img/folder.png";
 import MyButton from "@/components/button/MyButton";
 import storageDep from "@/hooks/storageDep";
 
+/**
+ * 选择部门 depIds 是 JSON = number[]
+ * required 是 必修选修
+ */
 const SelectDep: FC = () => {
-  const {depIds} = Taro.getCurrentInstance()?.router?.params as { depIds: string }
+  const params = Taro.getCurrentInstance()?.router?.params as { depIds: string, required: string | undefined }
   const [ids, setIds] = useState<number[]>([])
   const [deps, setDeps] = useState<Manage[]>([])
+  const [required, setRequired] = useState<number[]>([])
 
   useEffect(() => {
     curriculum.department().then(res => {
       setDeps(res.data)
     })
-    setIds(JSON.parse(depIds))
+    setIds(JSON.parse(params.depIds))
+    setRequired(JSON.parse(params.required || "[]"))
   }, [])
 
   const onChange = useCallback((id: number) => {
@@ -26,10 +32,20 @@ const SelectDep: FC = () => {
         ...ids,
         id
       ])
+
+      if (params.required) {
+        setRequired([...required, 0])
+      }
     } else {
       const oldIds: number[] = JSON.parse(JSON.stringify(ids))
       oldIds.splice(index, 1)
       setIds(oldIds)
+
+      if (params.required) {
+        const oldRequired: number[] = JSON.parse(JSON.stringify(required))
+        oldRequired.splice(index, 1)
+        setRequired(oldRequired)
+      }
     }
   }, [ids])
 
@@ -39,12 +55,13 @@ const SelectDep: FC = () => {
       return
     }
     storageDep.set(ids)
+    storageDep.setRequired(required)
     Taro.navigateBack({delta: 1})
   }
 
   return (
     <View className='px-2 bg-white'>
-      {deps.map(d => <View className='flex align-center' key={d.id} onClick={() => onChange(d.id)}>
+      {deps.map((d) => <View className='flex align-center' key={d.id} onClick={() => onChange(d.id)}>
         <Checkbox value={d.id + ''} checked={ids.includes(d.id)}/>
         <PopPut
           key={d.id}