diff --git a/src/renderer/src/components/choose-textbook/index.vue b/src/renderer/src/components/choose-textbook/index.vue
index ae8d243..9693126 100644
--- a/src/renderer/src/components/choose-textbook/index.vue
+++ b/src/renderer/src/components/choose-textbook/index.vue
@@ -71,6 +71,8 @@ const curBookId = ref(-1)
 const curBookName = ref('')
 //当前教材封面图
 const curBookImg = ref('')
+//当前教材文件路径
+const curBookPath = ref('')
 // 上册
 const volumeOne = ref([])
 // 下册
@@ -126,10 +128,11 @@ const getSubjectContent = async () => {
 }
 
 //选择教材
-const changeBook = ({ id, itemtitle, avartar }) => {
+const changeBook = ({ id, itemtitle, avartar, fileurl }) => {
   curBookId.value = id
   curBookName.value = itemtitle
   curBookImg.value = BaseUrl + avartar
+  curBookPath.value = fileurl
   getTreeData()
   setTimeout(() => {
     dialogVisible.value = false
@@ -176,7 +179,8 @@ const emitChangeBook = () => {
     textBook: {
       curBookId: curBookId.value,
       curBookName: curBookName.value,
-      curBookImg: curBookImg.value
+      curBookImg: curBookImg.value,
+      curBookPath: curBookPath.value
     },
     node: curNode
   }
@@ -276,6 +280,7 @@ const getSubject = async () => {
   curBookName.value = subjectList.value[0].itemtitle
   curBookId.value = subjectList.value[0].id
   curBookImg.value = BaseUrl + subjectList.value[0].avartar
+  curBookPath.value = subjectList.value[0].fileurl
 }
 
 
@@ -291,7 +296,7 @@ const handleNodeClick = (data, node) => {
    * 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
    */
-  
+
   const nodeData = data;
   const parentNode = node.parent.data;
 
@@ -306,7 +311,8 @@ const handleNodeClick = (data, node) => {
     textBook: {
       curBookId: curBookId.value,
       curBookName: curBookName.value,
-      curBookImg: curBookImg.value
+      curBookImg: curBookImg.value,
+      curBookPath: curBookPath.value
     },
     node: toRaw(nodeData)
   }
@@ -428,4 +434,4 @@ onMounted(() => {
   background-color: #eaf3ff !important;
   color: #409EFF
 }
-</style>
\ No newline at end of file
+</style>
diff --git a/src/renderer/src/views/prepare/index.vue b/src/renderer/src/views/prepare/index.vue
index 307cab9..4f66edc 100644
--- a/src/renderer/src/views/prepare/index.vue
+++ b/src/renderer/src/views/prepare/index.vue
@@ -66,6 +66,7 @@ import { Check } from '@element-plus/icons-vue'
 import Reserv from '@/views/prepare/container/reserv.vue'
 </script>
 <script>
+const Remote = require('@electron/remote')
 import ChooseTextbook from '@/components/choose-textbook/index.vue'
 import uploadDialog from '@/components/upload-dialog/index.vue'
 import { Refresh } from '@element-plus/icons-vue'
@@ -84,7 +85,7 @@ import outLink from '@/utils/linkConfig'
 import { createWindow } from '@/utils/tool'
 import { uniqBy, cloneDeep } from 'lodash'
 import { delClasswork, addEntpcourse } from '@/api/teaching/classwork'
-
+const fs = require('fs');
 const { ipcRenderer } = window.electron || {}
 
 export default {
@@ -110,6 +111,7 @@ export default {
       fileList: [],
       currentNode: {},
       currentFileList: [],
+      curBookPath: '',
       lastAsyncAllTime: '',
       uploadData: {
         textbookId: null,
@@ -160,6 +162,38 @@ export default {
     }
   },
   methods: {
+    getBookPathFromServer() {
+      let fileName = this.curBookPath
+      if (!fileName) return
+      fileName = fileName.replace('.txt', '.pdf')
+      return new Promise((resolve, reject)=>{
+        const userDataPath = Remote.app.getPath('userData')
+        const appRootFilePath = userDataPath + '\\selfFile\\'
+        let filePath = appRootFilePath + fileName
+        fs.access(filePath, fs.constants.F_OK, (err) => {
+          let filePath = import.meta.env.VITE_APP_RES_FILE_PATH + fileName
+          if (err) {
+            //从线上下载
+            ipcRenderer.send('download-file-default', {
+              url: filePath,
+              fileName: fileName
+            })
+            ipcRenderer.once('download-file-default' + fileName, (e, isSuccess) => {
+              if (isSuccess === true) {
+                resolve(appRootFilePath + fileName)
+              }else {
+                ElMessage({
+                  type: 'info',
+                  message: `下载教材失败！`
+                })
+              }
+            })
+          }else {
+            resolve(appRootFilePath + fileName)
+          }
+        })
+      })
+    },
     createFile() {
       creatPPT(this.currentNode.label + '.pptx', this.uploadData).then((res) => {
         this.currentFileList.unshift(res.resData)
@@ -279,8 +313,10 @@ export default {
         })
     },
     async nodeClick(data) {
+      console.log(data)
       if (this.currentNode.id === data.node.id) return
       this.curBookImg = data.textBook.curBookImg
+      this.curBookPath = data.textBook.curBookPath
       this.checkFileList = []
       let cata = parseCataByNode(data.node)
       this.currentNode = data.node
@@ -453,7 +489,9 @@ export default {
     },
 
     // 打开PDF-课件
-    navtoPdf() {
+    async navtoPdf() {
+      let path = await this.getBookPathFromServer()
+      console.log(path)
       createWindow('open-PDF', { url: '/classBegins/index' })
     },
     // 上课-工具类悬浮