diff --git a/src/app.tsx b/src/app.tsx
index ff9176d..778cdcf 100644
--- a/src/app.tsx
+++ b/src/app.tsx
@@ -3,6 +3,7 @@ import './app.scss'
 import {CustomWrapper} from "@tarojs/components";
 import unique_ident from "@/hooks/unique_ident";
 import {Profile} from '@/store'
+import storageDep from "@/hooks/storageDep";
 
 
 function updateApp() {
@@ -36,6 +37,7 @@ function App(props) {
 
   Taro.useLaunch(() => {
     updateApp()
+    storageDep.remove()
     unique_ident.put()
     unique_ident.del()
   })
diff --git a/src/hooks/storageDep.ts b/src/hooks/storageDep.ts
new file mode 100644
index 0000000..b70704a
--- /dev/null
+++ b/src/hooks/storageDep.ts
@@ -0,0 +1,26 @@
+import Taro from "@tarojs/taro";
+
+const KET = 'SELECTDEP'
+
+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()
+    return deps
+  }
+  return []
+}
+
+export default {
+  set,
+  get,
+  remove
+}
diff --git a/src/pages/manage/addStudent/addStudent.tsx b/src/pages/manage/addStudent/addStudent.tsx
index f10d161..6fae6aa 100644
--- a/src/pages/manage/addStudent/addStudent.tsx
+++ b/src/pages/manage/addStudent/addStudent.tsx
@@ -7,6 +7,7 @@ import {curriculum} from "@/api";
 import './addStudent.scss'
 import {getCurrentInstance} from "@tarojs/runtime";
 import {Profile} from '@/store'
+import storageDep from "@/hooks/storageDep";
 
 interface Department {
   id: number
@@ -58,7 +59,7 @@ const AddStudent = () => {
 
 
   const formatDep = useCallback(() => {
-    console.log(depIds,12)
+    console.log(depIds, 12)
     const selected = department.filter(d => depIds.includes(d.id)).map(d => d.title)
     const top4 = selected.splice(0, 3).join('、')
     return top4 + (selected.length ? "+" + selected.length : '')
@@ -82,11 +83,8 @@ const AddStudent = () => {
   }, [])
 
   Taro.useDidShow(() => {
-    const deps = Taro.getStorageSync('selectDep')
-    if (deps && deps.length) {
-      setDepIds(deps)
-      Taro.removeStorageSync('selectDep')
-    }
+    const newDepIds = storageDep.get()
+    setDepIds( newDepIds.length ?newDepIds: depIds)
   })
 
   return (
diff --git a/src/pages/manage/selectDep/selectDep.tsx b/src/pages/manage/selectDep/selectDep.tsx
index 3a6c125..0b0e997 100644
--- a/src/pages/manage/selectDep/selectDep.tsx
+++ b/src/pages/manage/selectDep/selectDep.tsx
@@ -5,6 +5,7 @@ import {curriculum} from "@/api";
 import PopPut from "@/components/popPut/popPut";
 import folder from "@/static/img/folder.png";
 import MyButton from "@/components/button/MyButton";
+import storageDep from "@/hooks/storageDep";
 
 const SelectDep: FC = () => {
   const {depIds} = Taro.getCurrentInstance()?.router?.params as { depIds: string }
@@ -31,7 +32,7 @@ const SelectDep: FC = () => {
       Taro.showToast({title: '请选着部门', icon: "error"})
       return
     }
-    Taro.setStorageSync('selectDep', ids)
+    storageDep.set(ids)
     Taro.navigateBack({delta: 1})
   }