diff --git a/package.json b/package.json
index f27fc00..9ac8a1d 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "aix-win-ws",
-  "version": "2.5.9",
+  "version": "2.5.10",
   "description": "",
   "main": "./out/main/index.js",
   "author": "上海交大重庆人工智能研究院",
diff --git a/src/main/file.js b/src/main/file.js
index 3de3333..5764d91 100644
--- a/src/main/file.js
+++ b/src/main/file.js
@@ -13,6 +13,34 @@ export default async function ({ app, shell, BrowserWindow, ipcMain }) {
   const appTempFilePath = userDataPath + '\\tempFile\\'
   let Spark = new SparkMD5.ArrayBuffer()
 
+  ipcMain.on('remove-local-file-list', (e, list) => {
+    let filePath = appRootFilePath
+    for (let i = 0; i < list.length; i++) {
+      let item = list[i];
+      if (!isAccess(filePath + item.fileNewName)) {
+        e.reply('remove-local-file-list-not', item)
+        continue
+      }
+      try {
+        fs.unlinkSync(filePath + item.fileNewName);
+        console.log(`${filePath} 已成功删除`);
+      } catch (err) {
+        console.error(`删除文件时出错:`, err);
+        e.reply('remove-local-file-list-error', item)
+      }
+    }
+    e.reply('remove-local-file-list-reply')
+  })
+
+  const isAccess = (filePath) => {
+    try {
+      fs.accessSync(filePath);
+      return true
+    } catch (err) {
+      return false
+    }
+  }
+
   ipcMain.on('upload-file-change', (e, { id, fileNewName, cookie, fileType }) => {
     let filePath = appRootFilePath + fileNewName
     //执行更新，上传文件
@@ -58,7 +86,6 @@ export default async function ({ app, shell, BrowserWindow, ipcMain }) {
           }
           //倒数十秒提交更改，十秒之内有继续修改则重置倒数
           uploadId = setTimeout(() => {
-            console.log(223)
             //执行更新，上传文件
             let formData = new FormData()
             formData.append('id', id)
@@ -89,8 +116,12 @@ export default async function ({ app, shell, BrowserWindow, ipcMain }) {
 
   function getFileMsg(path) {
     return new Promise((resolve, reject) => {
-      const stats = fs.statSync(path)
-      return resolve(stats.mtime.getTime())
+      try {
+        const stats = fs.statSync(path)
+        resolve(stats.mtime.getTime())
+      }catch (e) {
+        reject(e)
+      }
     })
   }
 
@@ -303,17 +334,20 @@ export default async function ({ app, shell, BrowserWindow, ipcMain }) {
           },
           onDownloadCancelled: async () => {
             console.log("取消")
-            reject({type:"取消了下载"})
+            resolve({type:"取消了下载"})
           },
           onDownloadInterrupted: async () => {
             console.log('中断')
-            reject({type:"下载被中断"})
+            resolve({type:"下载被中断"})
           },
           onError: (err, data) => {
             console.log(err.toString())
-            reject({type:"下载出错",err})
+            resolve({type:"下载出错",err})
           }
         }
+      }).catch(err=>{
+        console.log(err)
+        resolve({type:"下载出错",err})
       })
     })
   }
@@ -360,6 +394,7 @@ export default async function ({ app, shell, BrowserWindow, ipcMain }) {
         })
       })
       .catch((error) => {
+        console.log(error)
         e.reply('download-file-default' + fileName, false)
       })
   })
diff --git a/src/renderer/src/AixPPTist/src/api/index.ts b/src/renderer/src/AixPPTist/src/api/index.ts
index 8e15fb7..d568d02 100644
--- a/src/renderer/src/AixPPTist/src/api/index.ts
+++ b/src/renderer/src/AixPPTist/src/api/index.ts
@@ -97,14 +97,30 @@ export class PPTApi {
     })
   }
 
+  /**
+   * @description 批量插入slide
+   * @param slides 批量新增的幻灯片
+   * @param slideAll 所有幻灯片
+   * @returns 
+   */
+  static async addSlideServer(slides: object[], slideAll: object[]) {
+    const resource = sessionStore.get('curr.resource')||{}
+    for(const slide of slides){
+      slide.id = resource.id // 覆盖默认随机id
+      await this.addSlide(slide)
+    }
+    await this.batchUpdateSlides(slideAll, true) // 批量更新-排序
+    return PPTApi.getSlideList(resource.id) // 更新幻灯片列表以及活动相关
+  }
+
   // 新增幻灯片
   static addSlide(data: object): Promise<Boolean> {
     return new Promise(async (resolve, reject) => {
       const enpt = sessionStore.get('curr.entp')||{}
-      const resource = sessionStore.get('curr.resource')||{}
+      // const resource = sessionStore.get('curr.resource')||{}
       const {id, ...content} = data
       const params = {
-        parentid: resource.id,
+        parentid: id,
         entpid: userStore.user.deptId,
         entpcourseid: enpt.id,
         ppttype: 'file',
@@ -126,7 +142,7 @@ export class PPTApi {
         // msgUtils.msgSuccess('新增成功')
         this.isUpdate = false // 新增后会触发监听，不再更新数据
         resolve(true)
-      } else msgUtils.msgError('新增失败');resolve(false)
+      } else msgUtils.msgError('新增失败');reject(false)
     })
   }
   /**
@@ -147,22 +163,17 @@ export class PPTApi {
     const currInd = toRaw(slidesStore.slideIndex) // 当前页索引-new
     const oldInd = oldData.findIndex(o => o.id == currentSlide.id) // 当前页索引-old
     const isBatch = oldVal && oldVal.length && currInd != oldInd // 是否批量更新-排序
-    if (isAdd) { // 新增的幻灯片(id 为非数字，说明是新增的幻灯片)
-      const bool = await this.addSlide(currentSlide)
-      bool && await this.batchUpdateSlides(newData, true) // 批量更新-排序
-      const resource = sessionStore.get('curr.resource')||{}
-      await PPTApi.getSlideList(resource.id)
-    } else { // 防抖-更新
-      if (!this.isUpdate) return this.isUpdate = true // 下次更新数据
-      if (isBatch) { // 批量更新-排序
-        this.batchUpdateSlides(newData, true)
-      } else { // 更新当前页幻灯片
-        const params = {
-          id: currentSlide.id,
-          datacontent: JSON.stringify(currentSlide),
-        }
-        Utils.mxThrottle(() => {this.updateSlide(params)}, 200, 2)
+    if (isAdd) return // 新增-这里不处理 状态管理-处理
+    // 防抖-更新
+    if (!this.isUpdate) return this.isUpdate = true // 下次更新数据
+    if (isBatch) { // 批量更新-排序
+      this.batchUpdateSlides(newData, true)
+    } else { // 更新当前页幻灯片
+      const params = {
+        id: currentSlide.id,
+        datacontent: JSON.stringify(currentSlide),
       }
+      Utils.mxThrottle(() => {this.updateSlide(params)}, 200, 2)
     }
   }
   // 更新幻灯片 isThum 是否更新缩略图
diff --git a/src/renderer/src/AixPPTist/src/api/watcher.ts b/src/renderer/src/AixPPTist/src/api/watcher.ts
index 5a9e731..4860a0e 100644
--- a/src/renderer/src/AixPPTist/src/api/watcher.ts
+++ b/src/renderer/src/AixPPTist/src/api/watcher.ts
@@ -2,7 +2,7 @@
  * @description 公共监听器
  */
 
-import { watch } from 'vue'
+import { watch, render } from 'vue'
 import { PPTApi } from './index'
 import * as store from '../store'
 import { sessionStore } from '@/utils/store' // electron-store 状态管理
@@ -99,6 +99,7 @@ export default () => {
           }
           break
         case MsgEnum.HEADS.MSG_slideFlapping: // 幻灯片翻页
+          render(null, document.body) //移除弹窗
           emitter.emit('closegridPic') //如果有推图片窗口 就关闭
           const slideIndex = content?.current || 0
           const type = content?.animation // 上下动作
@@ -130,7 +131,7 @@ export default () => {
         case MsgEnum.HEADS.MSG_yh: // 疑惑
           hooksUpvote.trigger(2)
           break
-          case MsgEnum.HEADS.MSG_pushSreen_ImgList: // 推图片上屏
+        case MsgEnum.HEADS.MSG_pushSreen_ImgList: // 推图片上屏
           const imgArray = content.ImgList.map((obj) => obj.url);
           emitter.emit('opengridPic',{arr:imgArray}) // 打开推图片上屏窗口
           break
@@ -148,14 +149,4 @@ export default () => {
       window.close() // 关闭窗口
     }, 1000)
   }
-  // setTimeout(async () => {
-  //   emitter.emit('opengridPic',{arr:['https://prev.ysaix.com:7868/src/assets/images/homecard4.jpg']})
-  // }, 3000)
-
-  // setTimeout(async () => {
-  //   emitter.emit('closegridPic')
-  // }, 6000)
-  // setTimeout(async () => {
-  //   emitter.emit('opengridPic',{arr:['https://prev.ysaix.com:7868/src/assets/images/homecard4.jpg','https://prev.ysaix.com:7868/src/assets/images/homecard4.jpg']})
-  // }, 9000)
 }
\ No newline at end of file
diff --git a/src/renderer/src/AixPPTist/src/store/slides.ts b/src/renderer/src/AixPPTist/src/store/slides.ts
index f3a23fa..420bd84 100644
--- a/src/renderer/src/AixPPTist/src/store/slides.ts
+++ b/src/renderer/src/AixPPTist/src/store/slides.ts
@@ -148,7 +148,8 @@ export const useSlidesStore = defineStore('slides', {
       this.workItem = list
     },
   
-    addSlide(slide: Slide | Slide[]) {
+    async addSlide(slide: Slide | Slide[]) {
+      const { PPTApi } = await import('../api/index')
       const slides = Array.isArray(slide) ? slide : [slide]
       for (const slide of slides) {
         if (slide.sectionTag) delete slide.sectionTag
@@ -156,6 +157,8 @@ export const useSlidesStore = defineStore('slides', {
       const addIndex = this.slideIndex + 1
       this.slides.splice(addIndex, 0, ...slides)
       this.slideIndex = addIndex
+      // 添加到服务器
+      PPTApi.addSlideServer(slides, this.slides)
     },
     updateSlide(props: Partial<Slide>, slideId?: string) {
       const slideIndex = slideId ? this.slides.findIndex(item => item.id === slideId) : this.slideIndex
diff --git a/src/renderer/src/AixPPTist/src/views/Editor/Toolbar/ElementAnimationPanel.vue b/src/renderer/src/AixPPTist/src/views/Editor/Toolbar/ElementAnimationPanel.vue
index d27f20f..ea8b59c 100644
--- a/src/renderer/src/AixPPTist/src/views/Editor/Toolbar/ElementAnimationPanel.vue
+++ b/src/renderer/src/AixPPTist/src/views/Editor/Toolbar/ElementAnimationPanel.vue
@@ -95,8 +95,8 @@
                 style="width: 65%;"
                 :options="[
                   { label: '主动触发', value: 'click' },
-                  { label: '与上一动画同时', value: 'meantime' },
-                  { label: '上一动画之后', value: 'auto' },
+                  // { label: '与上一动画同时', value: 'meantime' },
+                  // { label: '上一动画之后', value: 'auto' },
                 ]"
               />
             </div>
diff --git a/src/renderer/src/AixPPTist/src/views/Screen/BaseView.vue b/src/renderer/src/AixPPTist/src/views/Screen/BaseView.vue
index 7d24e8c..4b747bd 100644
--- a/src/renderer/src/AixPPTist/src/views/Screen/BaseView.vue
+++ b/src/renderer/src/AixPPTist/src/views/Screen/BaseView.vue
@@ -47,8 +47,9 @@
         <IconListView class="tool-btn" v-tooltip="'演讲者视图'" @click="changeViewMode('presenter')" />
         <IconOffScreenOne class="tool-btn" v-tooltip="'退出全屏'" v-if="fullscreenState" @click="manualExitFullscreen()" />
         <IconFullScreenOne class="tool-btn" v-tooltip="'进入全屏'" v-else @click="enterFullscreen()" />
-        <IconPower class="tool-btn" v-tooltip="'结束放映'" @click="exitScreening()" />
-        <IconPower class="tool-btn close" v-if="chat.groupid" v-tooltip="'结束课堂'" @click="exitCourse()" />
+        <IconPower class="tool-btn" v-if="!classcourse" v-tooltip="'结束放映'" @click="exitScreening()" />
+        <IconPower class="tool-btn" v-else v-tooltip="'结束课堂'" @click="exitCourse()" size="30" fill="#d0021b" strokeLinecap="butt" />
+        <Share class="tool-btn" v-if="classcourse" v-tooltip="'分享'" @click="ShareCode()" />
       </div>
       <div :class="['tools-icon',{opacity:iconHide}]" @click.stop="toolTrigger('icon')">
         <circle-double-down v-if="rightToolsVisible" theme="outline" size="30" fill="#409EFF"/>
@@ -75,7 +76,8 @@ import WritingBoardTool from './WritingBoardTool.vue'
 import CountdownTimer from './CountdownTimer.vue'
 import emitter from '@/utils/mitt';
 import Chat from '../../api/chat' // 聊天
-import { CircleDoubleDown, CircleDoubleUp } from '@icon-park/vue-next' // icon-park 图标库
+import { CircleDoubleDown, CircleDoubleUp, Share } from '@icon-park/vue-next' // icon-park 图标库
+import { ShareCode } from '@/utils/ppt' // ppt相关
 
 const props = defineProps<{
   changeViewMode: (mode: 'base' | 'presenter') => void
@@ -102,6 +104,7 @@ const {
   execPrev,
   execNext,
   animationIndex,
+  turning,
 } = useExecPlay()
 const { slideWidth, slideHeight } = useSlideSize()
 const { exitScreening } = useScreening()
@@ -198,7 +201,7 @@ const contextmenus = (): ContextmenuItem[] => {
     },
   ]
 }
-
+// 工具栏按钮触发
 const toolTrigger = (type:string) => {
   const curT = Date.now()
   if (curT - timer.value < 200) return
diff --git a/src/renderer/src/AixPPTist/src/views/Screen/PresenterView.vue b/src/renderer/src/AixPPTist/src/views/Screen/PresenterView.vue
index a747a9c..5ece2f4 100644
--- a/src/renderer/src/AixPPTist/src/views/Screen/PresenterView.vue
+++ b/src/renderer/src/AixPPTist/src/views/Screen/PresenterView.vue
@@ -10,9 +10,10 @@
         <IconOffScreenOne class="tool-icon" v-else />
         <span>{{ fullscreenState ? '退出全屏' : '全屏' }}</span>
       </div>
+      <div class="tool-btn" @click="ShareCode()"><Share class="tool-icon" /><span>分享</span></div>
       <Divider class="divider" />
-      <div class="tool-btn" @click="exitScreening()"><IconPower class="tool-icon" /><span>结束放映</span></div>
-      <div class="tool-btn close" @click="exitCourse()" v-if="chat.groupid"><IconPower class="tool-icon" /><span>结束课堂</span></div>
+      <div class="tool-btn" v-if="!classcourse" @click="exitScreening()"><IconPower class="tool-icon" /><span>结束放映</span></div>
+      <div class="tool-btn" v-else @click="exitCourse()" size="30" fill="#d0021b" strokeLinecap="butt"><IconPower class="tool-icon" /><span>结束课堂</span></div>
     </div>
 
     <div class="content">
@@ -78,6 +79,7 @@
 </template>
 
 <script lang="ts" setup>
+import { Share } from '@icon-park/vue-next' // icon-park 图标库
 import { computed, nextTick, onMounted, onUnmounted, ref, watch } from 'vue'
 import { storeToRefs } from 'pinia'
 import { useSlidesStore, useClasscourseStore } from '../../store'
@@ -97,6 +99,7 @@ import CountdownTimer from './CountdownTimer.vue'
 import Divider from '../../components/Divider.vue'
 import emitter from '@/utils/mitt';
 import Chat from '../../api/chat' // 聊天
+import { ShareCode } from '@/utils/ppt' // ppt相关
 
 const props = defineProps<{
   changeViewMode: (mode: 'base' | 'presenter') => void
@@ -125,7 +128,7 @@ const { slideWidth, slideHeight } = useSlideSize(slideListWrapRef)
 const { exitScreening } = useScreening()
 const { slidesLoadLimit } = useLoadSlides()
 const { fullscreenState, manualExitFullscreen } = useFullscreen()
-const chat:any = Chat() // 聊天室
+const chatApi:any = Chat() // 聊天室
 
 const remarkFontSize = ref(16)
 const currentSlideRemark = computed(() => {
@@ -134,15 +137,20 @@ const currentSlideRemark = computed(() => {
 
 // 切换到指定的幻灯片
 const turnSlideTo = (index: number, e: PointerEvent) => {
-  // 课堂信息存在时，不允许翻页
-  console.log('课堂信息', classcourse, index)
-  if (!!classcourse.value) return
+  const preInd = slideIndex.value
   turnSlideToIndex(index)
+  if (!!classcourse.value) {// 上课中
+    if (preInd == index) return
+    const animationSteps = 0
+    const animation = index > preInd?'Nextsteps':'Previoustep'
+    const msg = { current:index, animation, animationSteps}
+    chatApi.slideFlapping(msg)
+  }
 }
 // 下课
 const exitCourse = async () => {
   // console.log('下课', chat)
-  await chat.exitCourse() // 下课消息
+  await chatApi.exitCourse() // 下课消息
   exitScreening() // 结束放映
 }
 
diff --git a/src/renderer/src/AixPPTist/src/views/Screen/hooks/useExecPlay.ts b/src/renderer/src/AixPPTist/src/views/Screen/hooks/useExecPlay.ts
index cb59465..abccbfd 100644
--- a/src/renderer/src/AixPPTist/src/views/Screen/hooks/useExecPlay.ts
+++ b/src/renderer/src/AixPPTist/src/views/Screen/hooks/useExecPlay.ts
@@ -28,53 +28,56 @@ export default (isLoader?: boolean = true) => {
 
   // 执行元素动画 isAsync 为 true 时，异步执行，否则同步执行
   const runAnimation = (isAsync: boolean) => {
-    // 正在执行动画时，禁止其他新的动画开始
-    if (inAnimation.value && !isAsync) return
+    return new Promise((resolve, reject) => {
+      // 正在执行动画时，禁止其他新的动画开始
+      if (inAnimation.value && !isAsync) return resolve()
 
-    const { animations, autoNext } = formatedAnimations.value[animationIndex.value]
-    animationIndex.value += 1
+      const { animations, autoNext } = formatedAnimations.value[animationIndex.value]
+      animationIndex.value += 1
 
-    // 标记开始执行动画
-    inAnimation.value = true
+      // 标记开始执行动画
+      inAnimation.value = true
 
-    let endAnimationCount = 0
+      let endAnimationCount = 0
 
-    // 依次执行该位置中的全部动画
-    for (const animation of animations) {
-      const elRef: HTMLElement | null = document.querySelector(`#screen-element-${animation.elId} [class^=base-element-]`)
-      if (!elRef) {
-        endAnimationCount += 1
-        continue
-      }
-
-      const animationName = `${ANIMATION_CLASS_PREFIX}${animation.effect}`
-      
-      // 执行动画前先清除原有的动画状态（如果有）
-      elRef.style.removeProperty('--animate-duration')
-      for (const classname of elRef.classList) {
-        if (classname.indexOf(ANIMATION_CLASS_PREFIX) !== -1) elRef.classList.remove(classname, `${ANIMATION_CLASS_PREFIX}animated`)
-      }
-      
-      // 执行动画
-      elRef.style.setProperty('--animate-duration', `${animation.duration}ms`)
-      elRef.classList.add(animationName, `${ANIMATION_CLASS_PREFIX}animated`)
-
-      // 执行动画结束，将“退场”以外的动画状态清除
-      const handleAnimationEnd = () => {
-        if (animation.type !== 'out') {
-          elRef.style.removeProperty('--animate-duration')
-          elRef.classList.remove(animationName, `${ANIMATION_CLASS_PREFIX}animated`)
+      // 依次执行该位置中的全部动画
+      for (const animation of animations) {
+        const elRef: HTMLElement | null = document.querySelector(`#screen-element-${animation.elId} [class^=base-element-]`)
+        if (!elRef) {
+          endAnimationCount += 1
+          continue
         }
 
-        // 判断该位置上的全部动画都已经结束后，标记动画执行完成，并尝试继续向下执行（如果有需要）
-        endAnimationCount += 1
-        if (endAnimationCount === animations.length) {
-          inAnimation.value = false
-          if (autoNext) runAnimation()
+        const animationName = `${ANIMATION_CLASS_PREFIX}${animation.effect}`
+        
+        // 执行动画前先清除原有的动画状态（如果有）
+        elRef.style.removeProperty('--animate-duration')
+        for (const classname of elRef.classList) {
+          if (classname.indexOf(ANIMATION_CLASS_PREFIX) !== -1) elRef.classList.remove(classname, `${ANIMATION_CLASS_PREFIX}animated`)
         }
+        
+        // 执行动画
+        elRef.style.setProperty('--animate-duration', `${animation.duration}ms`)
+        elRef.classList.add(animationName, `${ANIMATION_CLASS_PREFIX}animated`)
+
+        // 执行动画结束，将“退场”以外的动画状态清除
+        const handleAnimationEnd = async() => {
+          if (animation.type !== 'out') {
+            elRef.style.removeProperty('--animate-duration')
+            elRef.classList.remove(animationName, `${ANIMATION_CLASS_PREFIX}animated`)
+          }
+
+          // 判断该位置上的全部动画都已经结束后，标记动画执行完成，并尝试继续向下执行（如果有需要）
+          endAnimationCount += 1
+          if (endAnimationCount === animations.length) {
+            inAnimation.value = false
+            if (autoNext) await runAnimation()
+            resolve() // 执行完成
+          }
+        }
+        elRef.addEventListener('animationend', handleAnimationEnd, { once: true })
       }
-      elRef.addEventListener('animationend', handleAnimationEnd, { once: true })
-    }
+    })
   }
   if (isLoader) { // 加载相关钩子
     onMounted(() => {
@@ -147,7 +150,7 @@ export default (isLoader?: boolean = true) => {
     }
     inAnimation.value = false
   }
-  const execNext = (isAsync: boolean) => {
+  const execNext = async(isAsync: boolean) => {
     if (formatedAnimations.value.length && animationIndex.value < formatedAnimations.value.length) {
       runAnimation(isAsync)
     }
@@ -216,9 +219,17 @@ export default (isLoader?: boolean = true) => {
   // 向上翻页/向下翻页
   const turning = async (e, type) => {
     e.preventDefault() // 阻止默认事件
-    if (type === 'prev') execPrev()
-    else if (type === 'next') execNext()
-    if (classcourseStore.classcourse) { // 上课中
+    window.scrollTo(0, 0) // 滚动到顶部
+    const isCourse = !!classcourseStore.classcourse
+    if (type === 'prev') {
+      if (!isCourse) execPrev() // 上一步
+      else { // 上课状态: 上一步 动作变成 上一页
+        const current = slideIndex.value
+        if (current <= 0) return throttleMassage('已经是第一页了')
+        turnSlideToIndex(current - 1) // 翻页: 上一页
+      }
+    } else if (type === 'next') execNext()
+    if (isCourse) { // 上课中
       const current = slideIndex.value
       const animationSteps = animationIndex.value
       const animation = type == 'next'?'Nextsteps':'Previoustep'
@@ -285,5 +296,6 @@ export default (isLoader?: boolean = true) => {
     execPrev,
     execNext,
     animationIndex,
+    turning,
   }
 }
diff --git a/src/renderer/src/api/teaching/classcourse.js b/src/renderer/src/api/teaching/classcourse.js
index d227b2d..b3b6952 100644
--- a/src/renderer/src/api/teaching/classcourse.js
+++ b/src/renderer/src/api/teaching/classcourse.js
@@ -102,4 +102,16 @@ export function setPaging(data) {
     data
   })
 }
+/**
+ * 获取分享码(邀请码)
+ * @param {*} id 课堂id
+ * @returns 
+ */
+export function getShareCode(id) {
+  return request({
+    url: '/education/classcourse/refresh/code',
+    method: 'post',
+    data: { id }
+  })
+}
 
diff --git a/src/renderer/src/components/whiteboard/whiteboard.vue b/src/renderer/src/components/whiteboard/whiteboard.vue
index 7aabd4e..be3e274 100644
--- a/src/renderer/src/components/whiteboard/whiteboard.vue
+++ b/src/renderer/src/components/whiteboard/whiteboard.vue
@@ -1,6 +1,6 @@
 <template>
   <div class="whiteboart-container" :style="{ height: height + 'px' }">
-    <div class="canvasBox" ref="box"  @mouseleave="handleMouseLeave" ></div>
+    <div class="canvasBox" ref="box"  @mouseenter.capture="handleMouseEnter" @mouseleave.capture="handleMouseLeave"></div>
 
     <div class="footerLeft" @click.stop
       :style="type == 'design' ? ['top: 10px', 'justify-content: space-between'] : ['bottom: 10px', 'justify-content: center']">
@@ -278,7 +278,7 @@
 </template>
 
 <script setup>
-import { onMounted, ref, getCurrentInstance, watch, toRaw, nextTick, computed, reactive, defineProps, defineEmits } from 'vue'
+import { onMounted, onBeforeUnmount, ref, getCurrentInstance, watch, toRaw, nextTick, computed, reactive, defineProps, defineEmits } from 'vue'
 import TinyWhiteboard from 'whiteboard_lyc'
 import ColorPicker from './components/ColorPicker.vue'
 import {
@@ -791,6 +791,25 @@ const init = () => {
   })
 }
 
+
+
+const isMyCanvas = ref(false); // 鼠标 是否进入画布判断
+const handleKeyDown=(event)=> {
+  // console.log('键盘按键被按下:', event.key);
+  // console.log(isMyCanvas.value,'??????????')
+  if(isMyCanvas.value == false){
+    event.stopPropagation();
+    // console.log('键盘事件被捕获，已阻止冒泡:', event.key);
+  }
+}
+/**
+ * 鼠标进入事件
+ */
+const handleMouseEnter = () => {
+  console.log('进入白板')
+  isMyCanvas.value = true;
+  document.addEventListener('keydown', handleKeyDown, true);
+}
 /**
  * 课堂展示-鼠标离开白板监听事件：该事件是避免，选中状态，在其他地方点击、后退、删除等事件，会删除白板内选中的元素
  */
@@ -798,7 +817,10 @@ const handleMouseLeave = () => {
   console.log('离开白板')
   // 清除激活项--点击事件的激活项
   app.cancelActiveElement()
-  // TODO 缺失点击拖动范围的取消激活项……
+  // 阻止 点击拖动范围的取消激活项……
+  isMyCanvas.value = false;
+  // 确保事件处理函数在组件挂载后绑定
+  document.addEventListener('keydown', handleKeyDown, true);
 };
 
 // 暴露方法
diff --git a/src/renderer/src/utils/ppt/index.js b/src/renderer/src/utils/ppt/index.js
index 6634826..f556f1f 100644
--- a/src/renderer/src/utils/ppt/index.js
+++ b/src/renderer/src/utils/ppt/index.js
@@ -6,6 +6,10 @@ import { toPng, toJpeg } from 'html-to-image' // 引入html-to-image库
 import { PPTXFileToJson } from "@/AixPPTist/src/hooks/useImport"
 import ThumbnailSlide from '@/AixPPTist/src/views/components/ThumbnailSlide/index.vue'
 import { useSlidesStore } from '@/AixPPTist/src/store'
+import * as ElementPlus from 'element-plus'
+import { sessionStore } from '@/utils/store' // electron-store 状态管理
+import * as Http_Classcourse from '@/api/teaching/classcourse' // api接口
+
 // 延时
 const sleep = ms => new Promise(resolve => setTimeout(resolve, ms))
 
@@ -84,4 +88,44 @@ export const slidesToImg = (slides = [], options) => {
 export const pptToImg = async(file, options) => {
   const { slides } = await PPTXFileToJson(file)
   return slidesToImg(slides, options)
+}
+
+/**
+ * 课堂-分享码
+ */
+export const ShareCode = async(code, cb) => {
+  let shareCode
+  if (typeof code =='string') shareCode = code
+  else { // 自动获取邀请码
+    const classcourse = sessionStore.get('curr.classcourse') // 课堂信息
+    if (!classcourse) return ElementPlus.ElMessage.warning('没有课堂信息')
+    const isRefresh = typeof code == 'boolean' && code // 是否刷新邀请码
+    shareCode = classcourse.shareCode
+    if (!shareCode || isRefresh) { // 获取邀请码
+      const res = await Http_Classcourse.getShareCode(classcourse.id)
+      shareCode = res.msg
+      // 更新邀请码
+      sessionStore.set('curr.classcourse.shareCode', shareCode)
+    }
+  }
+  const msg = h('div', [
+    h('h1', [`我的邀请码：`, h('b',{style:{color:'#F56C6C',fontSize:'1.5em'}}, shareCode)]),
+    h('div', {style:{color:'#E6A23C',fontSize:'13px'}}, `该邀请码1小时内有效，请在学生端填写邀请码后即可进入课堂。`)
+  ])
+  return ElementPlus.ElMessageBox.alert(msg, '分享课程', {
+    confirmButtonText: '更新',
+    cancelButtonText: '关闭',
+    showCancelButton: true,
+
+    beforeClose: (action, instance, done) => {
+      if (action =='confirm') { // 更新
+        if (!!cb) { // 回调
+          cb({ h, instance, action, done }, done) && done()
+        } else { // 默认更新
+          ShareCode(true)
+          done()
+        }
+      } else done()
+    }
+  }).catch(() => {})
 }
\ No newline at end of file
diff --git a/src/renderer/src/utils/talkFile/index.js b/src/renderer/src/utils/talkFile/index.js
index fa56bb2..495e1cd 100644
--- a/src/renderer/src/utils/talkFile/index.js
+++ b/src/renderer/src/utils/talkFile/index.js
@@ -1,3 +1,5 @@
+import {ElMessage} from "element-plus";
+
 const { ipcRenderer } = window.electron || {}
 
 export const asyncLocalFile = (item) => {
@@ -15,6 +17,9 @@ export const asyncLocalFile = (item) => {
               fileName: item.fileNewName
             })
             ipcRenderer.once('download-file-default' + item.fileNewName, (e, isSuccess) => {
+              if (isSuccess == false) {
+                ElMessage.error(`${item.fileShowName}下载失败！`)
+              }
               item.async = isSuccess
               resolve()
             })
@@ -112,3 +117,24 @@ export const creatAIPPT = (name, url, uploadData) => {
     })
   })
 }
+
+export const removeLocalFiles = async (list) => {
+  return new Promise((resolve, reject) => {
+    ipcRenderer.send('remove-local-file-list', JSON.parse(JSON.stringify(list)))
+    ipcRenderer.removeListener('remove-local-file-list-error', removeLocalFileListError)
+    ipcRenderer.removeListener('remove-local-file-list-not', removeLocalFileListNot)
+    ipcRenderer.on('remove-local-file-list-error', removeLocalFileListError)
+    ipcRenderer.on('remove-local-file-list-not', removeLocalFileListNot)
+    ipcRenderer.once('remove-local-file-list-reply', (e, res) => {
+      resolve(res)
+    })
+  })
+}
+
+function removeLocalFileListError(e, item) {
+  ElMessage.error(`${item.fileShowName}删除失败`)
+}
+
+function removeLocalFileListNot(e, item) {
+  ElMessage.error(`${item.fileShowName}删除失败,并没有该文件！`)
+}
diff --git a/src/renderer/src/views/prepare/container/class-start.vue b/src/renderer/src/views/prepare/container/class-start.vue
index fbac0c8..a9b602a 100644
--- a/src/renderer/src/views/prepare/container/class-start.vue
+++ b/src/renderer/src/views/prepare/container/class-start.vue
@@ -60,8 +60,8 @@
              <template #item_mobile>
               <div>
                 <div v-if="myClassActive.filetype=='apt'">开始新的课堂，需要点击先创建课堂，才能显示手机二维码</div>
-                <div v-else>开始新的课堂，需要点击先创建课堂</div>
-                <el-button type="warning" :loading="dt.loading" @click="createClasscourse()">创建课堂</el-button>
+                <div v-else>开始新的课堂</div>
+                <!-- <el-button type="warning" :loading="dt.loading" @click="createClasscourse()">创建课堂</el-button> -->
                 <el-button type="success"  @click="createClasscourse(true)">公屏上课</el-button>
               </div>
              </template>
@@ -139,6 +139,8 @@ onMounted(() => {
  * @param classObj 课程对象-用于继续上课
  */
 const open = async (id, classObj) => {
+  dt.loading = false
+  dt.loadingDel = false
   visible.value = true
   if (id) {
     // 重置数据
@@ -167,6 +169,8 @@ const handleClose = async () => {
   // await chat?.logout()
   // chat = null
   dt.ctCourse = null
+  dt.loading = false
+  dt.loadingDel = false
   emit('close')
 }
 // 初始化-数据
@@ -264,7 +268,7 @@ const createClasscourse = async (isPublic = false) => {
   }
   // teacherForm.form.classcourseid = 100
   teacherForm.form.classcourseid = await Http_Classcourse.addClasscourseReturnId(params)
-  dt.loading = false
+    .finally(() => {dt.loading = false})
   // getClasscourseList('update') // 更新列表
   let msgEl = ElMessage.success('创建课程-成功')
   // 新版-pptList 打开公屏
@@ -360,8 +364,12 @@ const openPublicScreen = (classcourse, isPublic) => {
   console.log('打开公屏', classcourse)
   if (!dt.ctCourse) { // 新开课需要发送消息-继续上课不需要直接打开
     // 发送app端待开课消息
-    const data = { id: classcourse.id }
-    ChatWs.sendMsg(MsgEnum.HEADS.MSG_0000, data, {}, ChatWs.TYPES.single, userStore.id)
+    const TeacherId = userStore.id
+    const data = { id: classcourse.id, TeacherId }
+    const head = isPublic ? MsgEnum.HEADS.MSG_open : MsgEnum.HEADS.MSG_0000 // 消息头
+    const type = isPublic ? ChatWs.TYPES.group : ChatWs.TYPES.single // 消息类型
+    const toId = isPublic ? classcourse.timgroupid : TeacherId // 消息接收人
+    ChatWs.sendMsg(head, data, {}, type, toId)
   }
   // 缓存当前资源信息
   const resource = toRaw(myClassActive.value)
diff --git a/src/renderer/src/views/prepare/index.vue b/src/renderer/src/views/prepare/index.vue
index 564dd11..807584c 100644
--- a/src/renderer/src/views/prepare/index.vue
+++ b/src/renderer/src/views/prepare/index.vue
@@ -83,6 +83,7 @@
                   </template>
                 </el-popover>
                 <el-button size="small" @click="isDialogOpen = true">上传资料</el-button>
+                <el-button size="small" @click="reloadFiles">资源重载</el-button>
               </div>
             </div>
             <el-checkbox-group
@@ -187,8 +188,8 @@ import FileListItem from '@/views/prepare/container/file-list-item.vue'
 import KjListItem from '@/views/prepare/container/kj-list-item.vue'
 import { getSmarttalkPage, moveSmarttalk, creatAPT } from '@/api/file'
 import { toTimeText } from '@/utils/date'
-import { ElMessage } from 'element-plus'
-import { parseCataByNode, creatPPT, asyncLocalFile } from '@/utils/talkFile'
+import { ElMessage, ElMessageBox } from 'element-plus'
+import {parseCataByNode, creatPPT, asyncLocalFile, removeLocalFiles} from '@/utils/talkFile'
 import FileOperBatch from '@/views/prepare/container/file-oper-batch.vue'
 import SetHomework from '@/components/set-homework/index.vue'
 import outLink from '@/utils/linkConfig'
@@ -301,7 +302,7 @@ export default {
     },
     currentSCFileList() {
       // return this.currentFileList.filter((item) => item.fileFlag !== 'apt' && item.fileFlag !== '课件')
-      return this.currentFileList.filter((item) => !['apt','aippt','课件'].includes(item.fileFlag))
+      return this.currentFileList.filter((item) => !['apt','aippt'].includes(item.fileFlag))
     }
   },
 
@@ -449,6 +450,7 @@ export default {
         }
         case 'click': { // 点击-打开课件-aippt
           if (row.fileFlag === 'aippt' && !!row.fileId) {
+            sessionStore.delete('curr.classcourse') // 清除上课相关信息
             const res = await getEntpcoursefile(row.fileId)
             if (res && res.code === 200) {
               this.openPublicScreen('edit', res.data, row) // 打开公屏-窗口
@@ -932,6 +934,24 @@ export default {
       }
       console.log('File copied to:', filePath)
     },
+    reloadFiles() {
+      // TODO清除当前页所有文件缓存
+      ElMessageBox.confirm(
+        '是否确认重载当前资源，重载后将清除本页资源从新下载线上资源?',
+        '提示',
+        {
+          confirmButtonText: '是',
+          cancelButtonText: '取消',
+          type: 'warning',
+        }
+      )
+        .then(() => {
+          removeLocalFiles(this.currentSCFileList)
+          this.currentSCFileList.filter((item) => {
+            item.async = false
+          })
+        })
+    },
     asyncAllFile() {
       this.isLoading = true
       return getSmarttalkPage({