diff --git a/src/main/store.js b/src/main/store.js
index 0607e19..5cc0f1c 100644
--- a/src/main/store.js
+++ b/src/main/store.js
@@ -14,14 +14,14 @@ const defaultData = {
     isPdfWin: false,        // pdf窗口是否打开
     isToolWin: false,       // 工具窗口是否打开
     curSubjectNode: {
-      data: {},              // 当前教材节点 （包含当前教材 单元）
       querySearch: {}       // 查询资源所需参数
     },
-    subject: {
+    subject: {    // 不走同步 Pinia
       bookList: null, // 教材列表
       curBook: null, // 当前选中的教材
       curNode: null, // 当前选中的节点
       defaultExpandedKeys: [], //展开的节点
+      subjectTree: [] // "树结构" 章节
     }
   },
   local: { // 本地(永久localStorage)
diff --git a/src/renderer/src/components/choose-textbook/index.vue b/src/renderer/src/components/choose-textbook/index.vue
index 007bcf1..028cd02 100644
--- a/src/renderer/src/components/choose-textbook/index.vue
+++ b/src/renderer/src/components/choose-textbook/index.vue
@@ -181,6 +181,8 @@ onMounted( async () => {
 
     // 章节"树"
     treeData.value = useSubject.getTreeData(curBook.data.id)
+    sessionStore.set('subject.subjectTree',useSubject.getTreeData(curBook.data.id))
+    
     nextTick(() =>{
       // 默认展开 选中
       if(sessionStore.get('subject.curNode')){
diff --git a/src/renderer/src/store/modules/tool.js b/src/renderer/src/store/modules/tool.js
index 8c818cd..1facd80 100644
--- a/src/renderer/src/store/modules/tool.js
+++ b/src/renderer/src/store/modules/tool.js
@@ -6,6 +6,9 @@ import { sessionStore } from '@/utils/store'
 
 // 默认数据
 const defData = sessionStore.store || {}
+const exArrs = ['subject']
+exArrs.forEach(k => Object.keys(defData).includes(k) && (delete defData[k]))
+
 // 延时
 const sleep = ms => new Promise(resolve => setTimeout(resolve, ms))
 
@@ -16,7 +19,6 @@ export const useToolState = defineStore('tool', {
     isPdfWin: false,        // pdf窗口是否打开
     isToolWin: false,       // 工具窗口是否打开
     curSubjectNode: {
-      data: {},             // 当前教材节点 （包含当前教材 单元）
       querySearch: {}       // 查询资源所需参数
     },
     ...defData              // 默认数据-覆盖上面的配置(不要删除, 会导致新窗口-获取状态失败)
diff --git a/src/renderer/src/views/prepare/index.vue b/src/renderer/src/views/prepare/index.vue
index a5575a9..a872138 100644
--- a/src/renderer/src/views/prepare/index.vue
+++ b/src/renderer/src/views/prepare/index.vue
@@ -583,11 +583,7 @@ export default {
       this.uploadData.levelSecondId = cata[1]
       this.uploadData.levelThirdId = cata[2]
       this.uploadData.textbookId = data.textBook.curBookId
-      toolStore.curSubjectNode.data = data
-      // 不要同时修改共享数据，这样只会触发一次
-      this.$nextTick(() => {
-        toolStore.curSubjectNode.querySearch = this.uploadData
-      })
+      toolStore.curSubjectNode.querySearch = this.uploadData
       this.initHomeWork()
       await this.asyncAllFile()
     },
diff --git a/src/renderer/src/views/tool/components/homework.vue b/src/renderer/src/views/tool/components/homework.vue
index f9287cc..2599315 100644
--- a/src/renderer/src/views/tool/components/homework.vue
+++ b/src/renderer/src/views/tool/components/homework.vue
@@ -62,7 +62,7 @@
           <span class="unit-top-center">选择目录</span>
         </div>
         <div class="unit-content">
-          <Lesson @changeChapter="changeChapter" />
+          <Lesson @changeChapter="changeChapter" :curNode="curNode.data" />
         </div>
       </div>
     </transition>
@@ -70,19 +70,20 @@
 </template>
 
 <script setup>
-import { ref, onMounted, toRaw } from 'vue';
+import { ref, onMounted, toRaw, nextTick, reactive } from 'vue';
 import { useRoute } from 'vue-router';
 import useUserStore from '@/store/modules/user'
 import { getSmarttalkPage } from '@/api/file'
 import SetHomework from '@/components/set-homework/index.vue'
 import FileImage from '@/components/file-image/index.vue'
 import { useGetHomework } from '@/hooks/useGetHomework'
-import { ipcMsgSend, ipcMsgSend2, ipcMsgInvoke } from '@/utils/tool'
+import { ipcMsgSend, ipcMsgInvoke } from '@/utils/tool'
 import { useToolState } from '@/store/modules/tool'
 import Lesson from './lesson.vue';
 import { parseCataByNode } from '@/utils/talkFile'
 import MsgEnum from '@/plugins/imChat/msgEnum' // 消息枚举
 import { createHomework } from '../createHomework'
+import { sessionStore } from '@/utils/store'
 
 const route = useRoute();
 const usertore = useUserStore().user
@@ -99,6 +100,10 @@ const resourceList = ref([])
 //当前点击的数据
 const curRow = ref('')
 
+const curNode = reactive({
+  data: {}
+})
+
 const sendHomework = (row) => {
   curRow.value = row
   setTimeout(() => {
@@ -118,6 +123,7 @@ const successHomework = (data)=>{
 }
 // 章节目录change
 const changeChapter = async (data)=>{
+  curNode.data = data
   const { res } = await useGetHomework(data)
   dataList.value = res
   let cata = parseCataByNode(data)
@@ -177,10 +183,10 @@ const getResource = () => {
 
 //获取作业数据
 const getHomework = async () => {
-  const data = toRaw(toolStore.curSubjectNode).data.node
+
   loading.value = true
   try {
-    const { res } = await useGetHomework(data)
+    const { res } = await useGetHomework(curNode.data)
     dataList.value = res
   } finally {
     loading.value = false
@@ -203,13 +209,16 @@ function leave(el, done) {
   done();
 }
 
-onMounted(() => {
+onMounted(async () => {
+  await nextTick()
   entpcourseid.value = route.query.entpcourseid
   lesson.value = route.query.label
-  setTimeout(()=>{
-    getHomework()
-    getResource()
-  },200)
+  // 当前节点  mounted 的时候从缓存里拿
+  curNode.data = sessionStore.get('subject.curNode')
+  getHomework()
+  getResource()
+
+  
 })
 </script>
 
diff --git a/src/renderer/src/views/tool/components/lesson.vue b/src/renderer/src/views/tool/components/lesson.vue
index a111467..687693c 100644
--- a/src/renderer/src/views/tool/components/lesson.vue
+++ b/src/renderer/src/views/tool/components/lesson.vue
@@ -2,7 +2,7 @@
 
   <el-scrollbar>
     <el-tree ref="refTree" :data="treeData" :props="defaultProps" node-key="id"
-      :default-expanded-keys="defaultExpandedKeys" :current-node-key="currentNodeId" highlight-current
+      :default-expanded-keys="defaultExpandedKeys" :current-node-key="currentNode.data.id" highlight-current
       @node-click="handleNodeClick">
       <template #default="{ node }">
         <span :title="node.label" class="tree-label">{{ node.label }}</span>
@@ -13,133 +13,60 @@
 </template>
 
 <script setup>
-import { ref, onMounted, nextTick, toRaw } from 'vue'
+import { ref, reactive, onMounted, toRaw, watch } from 'vue'
 import { useToolState } from '@/store/modules/tool'
+import { sessionStore } from '@/utils/store'
+import { cloneDeep } from 'lodash' 
 
 const emit = defineEmits(['changeChapter'])
+const props = defineProps(['curNode'])
+
 const toolStore = useToolState()
 const treeData = ref([])
 const defaultProps = {
   children: 'children',
-  label: 'label',
+  label: 'itemtitle',
   class: 'textbook-tree'
 }
-// 当前选中的节点ID
-const currentNodeId = ref(0)
-// 当前选中的节点名称
-const currentNodeName = ref('')
+const currentNode = reactive({
+  data: {}
+})
+
+watch(() => props.curNode , (newVal) =>{
+  currentNode.data = newVal
+  console.log(currentNode.data)
+},
+{deep: true, immediate: true})
+
 // 默认展开的节点
 const defaultExpandedKeys = ref([])
 // tree
 const refTree = ref(null)
-// 教材ID
-const curBookId = ref('')
-// 
-const evaluationList = ref([])
 
-const getTreeData = () => {
-  evaluationList.value = JSON.parse(localStorage.getItem('unitList'))
-
-    //上册
-        /**
-   * 不区分上下册
-   * 2024/08/20调整
-   */
-  let volumeOne = evaluationList.value.filter(item => item.level == 1)
-
-  //数据过滤
-
-  let upData = transData(volumeOne)
-  if(upData.length){
-    treeData.value = [...upData]
-  }
-  else{
-    treeData.value = []
-    return
-  }
-  nextTick(() => {
-    let defaultKey
-    if(toolStore.curSubjectNode.querySearch.levelSecondId){
-      defaultKey = toolStore.curSubjectNode.querySearch.levelSecondId
-    }
-    else{
-      defaultKey = toolStore.curSubjectNode.querySearch.levelFirstId
-    }
-    currentNodeId.value  = defaultKey
-  })
-
-}
-
-const handleNodeClick = (data, node) => {
+const handleNodeClick = (data) => {
   /**
    * data : 当前节点数据
-   * node : 当前节点对象 包含当前节点所有数据  parent属性 指向父节点Node对象
    */
+   currentNode.data = data
+  let nodeData = cloneDeep(toRaw(data));
+ 
+ //增加一个label 之前取的label
+ nodeData.label = nodeData.itemtitle
+ // 父级节点 如果当前是一级节点 父级则为null
+ let parent = {
+   id: nodeData.parentid,
+   label: nodeData.parenttitle,
+   itemtitle: nodeData.parenttitle
+ } 
+ const parentNode = nodeData.parentid ?  parent : null
+ nodeData.parentNode = parentNode
 
-  const nodeData = data;
-  const parentNode = node.parent.data;
-
-  if (Array.isArray(parentNode)) {
-    nodeData.parentNode = null
-  }
-  else {
-    nodeData.parentNode = parentNode
-  }
-
-  emit('changeChapter', toRaw(nodeData))
+ emit('changeChapter', nodeData)
 }
 
-
-   // 根据教材章节单元ID 查询作业列表所需ID
-  const  getChapterId = () => {
-    return listEntpcourse({
-      evalid: this.uploadData.levelSecondId,
-      edituserid: this.userStore.userId,
-      pageSize: 500
-    })
-  }
-
-const transData = (data) => {
-  let ary = []
-  data.forEach(item => {
-    let obj = {}
-    if (item.rootid == curBookId.value) {
-      obj.label = item.itemtitle
-      obj.id = item.id
-      obj.itemtitle = item.itemtitle
-      obj.edudegree = item.edudegree
-      obj.edustage = item.edustage
-      obj.edusubject = item.edusubject
-      let ary2 = []
-      evaluationList.value.forEach(el => {
-        let obj2 = {}
-        if (item.id == el.parentid) {
-          obj2 = {
-            label: el.itemtitle,
-            id: el.id,
-            itemtitle : el.itemtitle,
-            edudegree : el.edudegree,
-            edustage : el.edustage,
-            edusubject : el.edusubject,
-          }
-          ary2.push(obj2)
-        }
-        obj.children = ary2
-      })
-      ary.push(obj)
-    }
-  })
-  return ary
-}
-
-
 onMounted(()=>{
-  setTimeout(()=>{
-    let data = toRaw(toolStore.curSubjectNode)
-    curBookId.value = data.data.textBook.curBookId
-    getTreeData()
-  },500)
-  
+  treeData.value = sessionStore.get('subject.subjectTree')
+  defaultExpandedKeys.value = sessionStore.get('subject.defaultExpandedKeys')
 })
 </script>