diff --git a/src/renderer/src/components/pdf/index.vue b/src/renderer/src/components/pdf/index.vue
index 0064a6a..3ac1cf6 100644
--- a/src/renderer/src/components/pdf/index.vue
+++ b/src/renderer/src/components/pdf/index.vue
@@ -187,11 +187,13 @@ onMounted(async () => {
     fabriccanvas.value = new fabric.Canvas('pdf-fabric')
     fabriccanvas.value.setWidth(595)
     fabriccanvas.value.isDrawingMode = true
-    fabriccanvas.value.freeDrawingBrush.color = 'red'
+    fabriccanvas.value.freeDrawingBrush.color = '#A33AFE'
+    fabriccanvas.value.freeDrawingCursor = 'default'
 
     fabriccanvas1.value = new fabric.Canvas('pdf-fabric1')
     fabriccanvas1.value.isDrawingMode = true
-    fabriccanvas1.value.freeDrawingBrush.color = 'red'
+    fabriccanvas1.value.freeDrawingBrush.color = '#A33AFE'
+    fabriccanvas1.value.freeDrawingCursor = 'default'
     fabriccanvas1.value.setWidth(595)
     emit('update:numPagesTotal', pdf.numPages)
     initPdf()
diff --git a/src/renderer/src/utils/tool.js b/src/renderer/src/utils/tool.js
index 69a267a..2ca72e7 100644
--- a/src/renderer/src/utils/tool.js
+++ b/src/renderer/src/utils/tool.js
@@ -158,10 +158,19 @@ const eventHandles = (type, win) => {
       publicMethods(on) // 加载公共方法
       break}
     case 'open-PDF': {
-       // 最小化窗口
-       Remote.ipcMain.once('open-PDF:minimize', () => {win.minimize()})
+       // 最小化窗口 minimize()
+       Remote.ipcMain.once('open-PDF:minimize', () => {win.destroy()})
       break}
     default:
       break
   }
 }
+
+const taskHandles = () => {
+  // // 设置任务栏上下文菜单
+  // const contextMenu = new Remote.Menu()
+  // contextMenu.append(new Remote.MenuItem({
+  //   label: '关闭',
+  //   click: () => {Remote.app.quit()}
+  // }))
+}
diff --git a/src/renderer/src/views/prepare/index.vue b/src/renderer/src/views/prepare/index.vue
index 7119f9a..80ac306 100644
--- a/src/renderer/src/views/prepare/index.vue
+++ b/src/renderer/src/views/prepare/index.vue
@@ -12,7 +12,7 @@
           <el-button class="btn" @click="handleOutLink('gk')">高考研读</el-button>
           <el-button class="btn" @click="handleOutLink('aiModel')">教学大模型</el-button>
         </div>
-        <el-button type="primary" class="to-class-btn">
+        <el-button type="primary" class="to-class-btn" @click="openLesson">
           <i class="iconfont icon-lingdang"></i>上课</el-button>
       </div>
       <div class="prepare-body-header">
@@ -260,10 +260,13 @@ export default {
         cookieData: {...(configObj.data)}
       })
     },
+    // 打开PDF-课件
     navtoPdf() {
-      const params = { url: '/classBegins/index' }
-      createWindow('open-PDF', params)
-   
+      createWindow('open-PDF', { url: '/classBegins/index' })
+    },
+    // 上课-工具类悬浮
+    openLesson() {
+      createWindow('tool-sphere', { url: '/tool/sphere' })
     }
   }
 }
diff --git a/src/renderer/src/views/resource/index.vue b/src/renderer/src/views/resource/index.vue
index 03c4063..887ea2d 100644
--- a/src/renderer/src/views/resource/index.vue
+++ b/src/renderer/src/views/resource/index.vue
@@ -16,7 +16,7 @@
   </div>
   <!-- 上传弹窗 -->
   <uploadDialog v-model="isDialogOpen" @submitFile="submitFile" />
-  <el-button @click="testClick">测试</el-button>
+  <!-- <el-button @click="testClick">测试</el-button> -->
 </template>
 
 <script setup>
@@ -42,8 +42,7 @@ onMounted(async () => {
   // console.log('消息返回：', res)
 })
 const testClick = async() => {
-  const params = { url: '/tool/sphere' }
-  const win = await createWindow('tool-sphere', params)
+  const win = await createWindow('tool-sphere', { url: '/tool/sphere' })
   console.log('消息返回：', win)
 }
 // 查询
diff --git a/src/renderer/src/views/tool/components/board.vue b/src/renderer/src/views/tool/components/board.vue
index 3a9546f..6a501a4 100644
--- a/src/renderer/src/views/tool/components/board.vue
+++ b/src/renderer/src/views/tool/components/board.vue
@@ -6,12 +6,13 @@
 // 功能说明：画板
 import { ref, onMounted } from 'vue'
 import { FabricVue } from '@/plugins/fabric'
-import { useBoardStore } from '@/store/modules/draw'
+import { useBoardStore, useDrawStore } from '@/store/modules/draw'
 const canvasRef = ref(null)
 
 onMounted(async() => {
   if (canvasRef.value) {
     useBoardStore().backgroundColor = 'transparent'
+    useDrawStore().drawColors = ['red']
     const option = { freeDrawingCursor: 'default' }
     await FabricVue.initCanvas(canvasRef.value, option)
     // FabricVue.canvas.backgroundColor = 'transparent'