diff --git a/src/renderer/src/utils/tool.js b/src/renderer/src/utils/tool.js
index a83cbd1..9ba4abc 100644
--- a/src/renderer/src/utils/tool.js
+++ b/src/renderer/src/utils/tool.js
@@ -222,9 +222,11 @@ export const createWindow = async (type, data) => {
       if (import.meta.env.VITE_SHOW_DEV_TOOLS === 'true') win.webContents.openDevTools() // 打开调试工具
       let events = {} // 事件处理函数对象
       Object.keys(data)
-        .filter(k => typeof data[k] === 'function')
+        .filter(k => typeof data[k] === 'function' && k!=='success')
         .forEach(k => events[k] = data[k])
       eventHandles(type, win, events) // 事件监听处理
+      // 创建成功后触发回调
+      data.success && data.success(win)
       return win
     }
     default:
@@ -306,9 +308,9 @@ const eventHandles = (type, win, events) => {
     // 监听主窗口-关闭事件
     mainWin.once('close', () => {winPdf=null;win.destroy();})
     win.on('closed', () => {
-      if(!!onClosed) onClosed() // 自定义关闭事件
-      if(!!closed) closed()     // 自定义关闭事件
-      if(!!close) close()       // 自定义关闭事件
+      if(!!onClosed) onClosed(win) // 自定义关闭事件
+      if(!!closed) closed(win)     // 自定义关闭事件
+      if(!!close) close(win)       // 自定义关闭事件
       win = null
       wins_tool = null
       winChild=null
diff --git a/src/renderer/src/views/model/index.vue b/src/renderer/src/views/model/index.vue
index 70bafe7..6ceca61 100644
--- a/src/renderer/src/views/model/index.vue
+++ b/src/renderer/src/views/model/index.vue
@@ -288,14 +288,17 @@ const createAIPPT = () => {
     })
   })
 }
-
+const isPgDialogClose = ref(false) // 弹窗-进度条-是否关闭
 const pgDialog = ref({ // 弹窗-进度条
   visible: false,
   title: 'PPT解析中...',
   width: 300,
-  showClose: false,
+  showClose: true,
   draggable: true,
-  beforeClose: done => {}, // 阻止-弹窗事件
+  beforeClose: done => { // 弹窗关闭前回调
+    isPgDialogClose.value = true
+    done()
+  },
   pg: { // 进度条-参数
     percentage: 0, // 百分比
     color: [
@@ -316,20 +319,26 @@ const openFilePicker = () =>{
 
 const handleFileChange = ()=> {
   const file = event.target.files[0];
+  fileInput.value.value = ''
   if (file) {
-    console.log(file);
     createAIPPTByFile(file)
   }
 }
 // ppt文件转PPT线上数据
 const createAIPPTByFile = async (file)=> {
+  isPgDialogClose.value = false // 默认没有关闭
   pgDialog.value.visible = true
   pgDialog.value.pg.percentage = 0
+  const closePgDialog = () => {
+    pgDialog.value.pg.percentage = 0
+    pgDialog.value.visible = false
+  }
   pptMedia = {} // 清空媒体数据
   const resPptJson = await PPTXFileToJson(file).catch(() => {
     ElMessageBox.alert('PPT文件转换失败！请点击素材右侧...下载文件后打开另存为PPTX文件格式再进行导入！')
     pgDialog.value.visible = false
   })
+  if(isPgDialogClose.value) return closePgDialog() // 弹窗关闭了,终止进行
   const { def, slides, ...content } = resPptJson
   // 生成缩略图
   const thumbnails = await slidesToImg(slides, content.width)
@@ -337,13 +346,13 @@ const createAIPPTByFile = async (file)=> {
   let completed = 0
   const total = slides.length
   for( let o of slides ) {
+    if(isPgDialogClose.value) return closePgDialog() // 弹窗关闭了,终止进行
     completed++
     await toRousrceUrl(o)
     // 设置进度条
     pgDialog.value.pg.percentage = Math.floor(completed / total * 100)
   }
-  pgDialog.value.pg.percentage = 0
-  pgDialog.value.visible = false
+  closePgDialog() // 关闭进度条弹窗
   listEntpcourse({
     evalid: currentNode.value.id,
     edituserid: userStore.userId,
@@ -564,13 +573,38 @@ const changeClass = async (type, row, other) => {
   switch(type) {
     case 'click': { // 点击-打开课件-aippt
       if (row.fileFlag === 'aippt' && !!row.fileId) {
+        const id = Number(row.fileId)
+        const openFileIds = sessionStore.get('curr.openFileIds')||[] // 已打开课件列表id
+        const isHasOpen = openFileIds.includes(id) // 是否已打开
+        if (isHasOpen) return ElMessage.warning('该课件已打开！')
         const res = await getEntpcoursefile(row.fileId)
         if (res && res.code === 200) {
+          openFileIds.push(id) // 课堂资源缓存-允许打开多个
+          sessionStore.set('curr.openFileIds', openFileIds) // 更新窗口课件列表id
           sessionStore.set('curr.resource', res.data) // 缓存当前资源信息
           sessionStore.set('curr.smarttalk', row) // 缓存当前文件smarttalk
           createWindow('open-win', {
             url: '/pptist', // 窗口关闭时，清除缓存
-            close: () => {
+            success: (win) => { // 窗口打开成功
+              const map = sessionStore.get('curr.winMap') || {}
+              map[win.id] = id // 将当前窗口id和课件id进行关联
+              sessionStore.set('curr.winMap', map)
+            },
+            close: (win) => {
+              const openFileIds = sessionStore.get('curr.openFileIds')||[] // 已打开课件列表id
+              const map = sessionStore.get('curr.winMap') || {}
+              const resourceId = map[win.id] // 当前窗口关联的课件id
+              if (resourceId){
+                const ind = openFileIds.findIndex(id => id == resourceId) // 是否存在打开的课件
+                if (ind >= 0) { // 存在打开的课件
+                  openFileIds.splice(ind, 1) // 删除关联课件
+                  if (openFileIds.length) sessionStore.set('curr.openFileIds', openFileIds) // 更新窗口课件列表
+                  else sessionStore.delete('curr.openFileIds') // 清除缓存
+                  delete map[win.id] // 删除 当前窗口课件关联
+                  if(Object.keys(map).length) sessionStore.set('curr.winMap', map) // 更新窗口课件关联
+                  else sessionStore.delete('curr.winMap') // 清除缓存
+                }
+              }
               sessionStore.delete('curr.resource') // 清除缓存
               sessionStore.delete('curr.smarttalk') // 清除缓存
               getSmarttalkPage({
diff --git a/src/renderer/src/views/prepare/index.vue b/src/renderer/src/views/prepare/index.vue
index 8a9d5c6..444a4bb 100644
--- a/src/renderer/src/views/prepare/index.vue
+++ b/src/renderer/src/views/prepare/index.vue
@@ -274,13 +274,17 @@ export default {
       treelogRef:null,
       // 获取当前章节对应的课程信息 Entpcourse
       entp: null,
+      isPgDialogClose: false, // 关闭进度条弹窗
       pgDialog: { // 弹窗-进度条
         visible: false,
         title: 'PPT解析中...',
         width: 300,
-        showClose: false,
+        showClose: true,
         draggable: true,
-        beforeClose: done => {}, // 阻止-弹窗事件
+        beforeClose: done => { // 弹窗关闭前回调
+          this.isPgDialogClose = true
+          done()
+        },
         pg: { // 进度条-参数
           percentage: 0, // 百分比
           color: [
@@ -453,6 +457,9 @@ export default {
         }
         case 'click': { // 点击-打开课件-aippt
           if (row.fileFlag === 'aippt' && !!row.fileId) {
+            const openFileIds = sessionStore.get('curr.openFileIds')||[] // 已打开课件列表id
+            const isHasOpen = openFileIds.includes(Number(row.fileId)) // 是否已打开
+            if (isHasOpen) return ElMessage.warning('该课件已打开！')
             sessionStore.delete('curr.classcourse') // 清除上课相关信息
             const res = await getEntpcoursefile(row.fileId)
             if (res && res.code === 200) {
@@ -496,12 +503,37 @@ export default {
      * @param {object} currData 当前数据 type: edit/class 备课信息 | 课堂信息
      */
     openPublicScreen(type, resource, currData) {
+      const openFileIds = sessionStore.get('curr.openFileIds')||[]
+      const isNoOpen = !openFileIds.includes(Number(resource.id)) // 是否不存在
+      if (isNoOpen) {
+        openFileIds.push(resource.id) // 课堂资源缓存-允许打开多个
+        sessionStore.set('curr.openFileIds', openFileIds) // 更新窗口课件列表id
+      }
       sessionStore.set('curr.resource', resource) // 缓存当前资源信息
       if (type=='edit') sessionStore.set('curr.smarttalk', currData) // 缓存当前文件smarttalk
       else sessionStore.set('curr.classcourse', currData) // 缓存当前当前上课
       createWindow('open-win', {
         url: '/pptist', // 窗口关闭时，清除缓存
-        close: () => {
+        success: (win) => { // 窗口打开成功
+          const map = sessionStore.get('curr.winMap') || {}
+          map[win.id] = resource.id // 将当前窗口id和课件id进行关联
+          sessionStore.set('curr.winMap', map)
+        },
+        close: (win) => {
+          const openFileIds = sessionStore.get('curr.openFileIds')||[] // 课件列表
+          const map = sessionStore.get('curr.winMap') || {}
+          const resourceId = map[win.id] // 当前窗口关联的课件id
+          if (resourceId){
+            const ind = openFileIds.findIndex(id => id == resourceId) // 是否存在打开的课件
+            if (ind >= 0) { // 存在打开的课件
+              openFileIds.splice(ind, 1) // 删除关联课件
+              if (openFileIds.length) sessionStore.set('curr.openFileIds', openFileIds) // 更新窗口课件列表
+              else sessionStore.delete('curr.openFileIds') // 清除缓存
+              delete map[win.id] // 删除 当前窗口课件关联
+              if(Object.keys(map).length) sessionStore.set('curr.winMap', map) // 更新窗口课件关联
+              else sessionStore.delete('curr.winMap') // 清除缓存
+            }
+          }
           sessionStore.delete('curr.resource') // 清除缓存
           if (type=='edit') {
             sessionStore.delete('curr.smarttalk') // 清除缓存
@@ -584,6 +616,7 @@ export default {
     },
     handleFileChange(){
       const file = event.target.files[0];
+      this.$refs.fileInput.value = ''
       if (file) {
         console.log(file);
         console.log('文件名:', file.name);
@@ -659,14 +692,20 @@ export default {
       }
     },
     async createAIPPTByFile(file,fileShowName) {
+      this.isPgDialogClose = false // 默认不关闭
       this.pgDialog.visible = true
       this.pgDialog.pg.percentage = 0
+      const closePgDialog = () => {
+        this.pgDialog.pg.percentage = 0
+        this.pgDialog.visible = false
+      }
       this.pptMedia = {} // 清空媒体数据
       const resPptJson = await PPTXFileToJson(file).catch(() => {
         ElMessageBox.alert('PPT文件转换失败！请点击素材右侧...下载文件后打开另存为PPTX文件格式再进行导入！')
         this.pgDialog.visible = false
       })
       if (!resPptJson) return
+      if(this.isPgDialogClose) return closePgDialog() // 弹窗关闭了,终止进行
       const { def, slides, ...content } = resPptJson
       // 生成缩略图
       const thumbnails = await slidesToImg(slides, content.width)
@@ -674,13 +713,13 @@ export default {
       let completed = 0
       const total = slides.length
       for( let o of slides ) {
+        if(this.isPgDialogClose) return closePgDialog() // 弹窗关闭了,终止进行
         completed++
         await this.toRousrceUrl(o)
         // 设置进度条
         this.pgDialog.pg.percentage = Math.floor(completed / total * 100)
       }
-      this.pgDialog.pg.percentage = 0
-      this.pgDialog.visible = false
+      closePgDialog() // 关闭进度条弹窗
       listEntpcourse({
         evalid: this.currentNode.id,
         edituserid: this.userStore.userId,