diff --git a/src/api/types.ts b/src/api/types.ts
index be28d1a..5ac4b60 100644
--- a/src/api/types.ts
+++ b/src/api/types.ts
@@ -720,13 +720,14 @@ export interface Repo {
   id: string
   title: string
   remark: string
-  questionCount?: number
-  createBy: string
-  createTime: string
-  updateBy: string
-  updateTime: string
-  courseId?: string  // 所属课程ID
-  courseName?: string  // 所属课程名称
+  question_count?: number  // 匹配API返回的字段名
+  create_by: string        // 匹配API返回的字段名
+  create_time: string      // 匹配API返回的字段名
+  update_by: string        // 匹配API返回的字段名
+  update_time: string      // 匹配API返回的字段名
+  createByName?: string    // 创建人姓名
+  courseId?: string        // 所属课程ID
+  courseName?: string      // 所属课程名称
 }
 
 export interface Question {
diff --git a/src/views/CourseExchanged.vue b/src/views/CourseExchanged.vue
index 6b1b726..ae02f8a 100644
--- a/src/views/CourseExchanged.vue
+++ b/src/views/CourseExchanged.vue
@@ -152,9 +152,12 @@
                           <button class="btn-nav btn-prev" @click="previousPracticeQuestion" :disabled="currentQuestionIndex === 0">
                             上一题
                           </button>
-                          <button class="btn-nav btn-next" @click="nextPracticeQuestion">
+                          <button v-if="currentQuestionIndex < practiceQuestions.length - 1" class="btn-nav btn-next" @click="nextPracticeQuestion">
                             下一题
                           </button>
+                          <button v-else class="btn-nav btn-return" @click="exitPracticeMode">
+                            返回学习
+                          </button>
                         </div>
                       </div>
                     </div>
@@ -327,7 +330,7 @@
                       <span class="icon-download"></span>
                     </button>
                   </div>
-                  <div class="interaction-right">
+                  <div class="interaction-right" style="display: none;">
                     <div class="comment-input">
                       <input type="text" placeholder="成功报名学习才能发送弹幕哦～" />
                       <button class="send-btn">发送</button>
@@ -419,8 +422,8 @@
 
                 <!-- 课程描述 -->
                 <div class="course-description">
-                  <div class="course-description-text" style="display: none;">本课程中的部分图片、音频和视频素材来源于网络，仅供教学使用。如有问题，请点击 <span @click="openComplaintModal('feedback')">这里</span> 反馈</div>
-                  <span @click="openComplaintModal('complaint')">稿件投诉</span>
+                  <div class="course-description-text">本课程中的部分图片、音频和视频素材来源于网络，仅供教学使用。如有问题，请点击 <span @click="openComplaintModal('feedback')">这里</span> 反馈</div>
+                  <span @click="openComplaintModal('complaint')" style="display: none;">稿件投诉</span>
                 </div>
 
 
@@ -430,12 +433,13 @@
                 <!-- 课程标签页 -->
                 <div class="course-tabs">
                   <div class="tab-nav">
+                    <button class="tab-btn" :class="{ active: courseActiveTab === 'comments' }"
+                    @click="courseActiveTab = 'comments'">评论({{ commentsCount }})</button>
                     <button class="tab-btn" :class="{ active: courseActiveTab === 'summary' }"
                       @click="courseActiveTab = 'summary'">课程总结</button>
                     <button class="tab-btn" :class="{ active: courseActiveTab === 'subtitles' }"
                       @click="courseActiveTab = 'subtitles'">字幕列表</button>
-                    <button class="tab-btn" :class="{ active: courseActiveTab === 'comments' }"
-                      @click="courseActiveTab = 'comments'">评论({{ commentsCount }})</button>
+                   
                   </div>
 
                   <!-- 标签页内容区域 -->
@@ -1299,6 +1303,31 @@
       </div>
     </div>
   </n-modal>
+
+  <!-- 下载确认弹窗 -->
+  <n-modal v-model:show="downloadConfirmVisible" style="width: 400px;">
+    <div class="download-confirm-modal">
+      <div class="download-confirm-header">
+        <div class="download-confirm-title">确认下载</div>
+      </div>
+
+      <div class="download-confirm-content">
+        <p>确定要下载该资料吗？</p>
+        <p v-if="pendingDownloadSection" class="download-section-name">
+          {{ pendingDownloadSection.name }}
+        </p>
+      </div>
+
+      <div class="download-confirm-actions">
+        <n-button @click="cancelDownload" style="margin-right: 12px;">
+          取消
+        </n-button>
+        <n-button type="primary" @click="confirmDownload">
+          确认下载
+        </n-button>
+      </div>
+    </div>
+  </n-modal>
 </template>
 
 <script setup lang="ts">
@@ -2236,7 +2265,23 @@ const getLessonTypeBadgeClass = (section: CourseSection) => {
 
 // 处理下载操作
 const handleDownload = async (section: CourseSection) => {
-  console.log('📄 获取章节资料:', section)
+  console.log('📄 点击下载按钮:', section)
+
+  // 显示确认弹窗
+  pendingDownloadSection.value = section
+  downloadConfirmVisible.value = true
+}
+
+// 确认下载
+const confirmDownload = async () => {
+  if (!pendingDownloadSection.value) return
+
+  const section = pendingDownloadSection.value
+  console.log('📄 确认下载章节资料:', section)
+
+  // 关闭确认弹窗
+  downloadConfirmVisible.value = false
+  pendingDownloadSection.value = null
 
   try {
     // 调用章节资料API
@@ -2560,6 +2605,30 @@ const nextPracticeQuestion = () => {
   }
 }
 
+// 退出练习模式
+const exitPracticeMode = () => {
+  console.log('🔙 退出练习模式，返回学习')
+
+  // 重置练习相关状态
+  practiceMode.value = false
+  practiceStarted.value = false
+  practiceFinished.value = false
+  currentQuestionIndex.value = 0
+  practiceQuestions.value = []
+  practiceAnswers.value = []
+  fillAnswers.value = []
+  essayAnswers.value = []
+  currentPracticeSection.value = null
+
+  message.success('已退出练习模式')
+}
+
+// 取消下载
+const cancelDownload = () => {
+  downloadConfirmVisible.value = false
+  pendingDownloadSection.value = null
+}
+
 
 
 
@@ -3049,6 +3118,10 @@ const complaintContent = ref('')
 const complaintType = ref<'feedback' | 'complaint'>('feedback')
 const uploadFileList = ref([])
 
+// 下载确认弹窗相关
+const downloadConfirmVisible = ref(false)
+const pendingDownloadSection = ref<CourseSection | null>(null)
+
 // 打开投诉弹窗
 const openComplaintModal = (type: 'feedback' | 'complaint') => {
   complaintType.value = type
@@ -4418,9 +4491,9 @@ onActivated(() => {
   color: #999999;
   font-size: 14px;
   display: flex;
-  justify-content: flex-end;
+  justify-content: flex-start;
   align-items: center;
-  margin-right: 10px;
+  margin-left: 10px;
 }
 
 .course-description span {
@@ -6560,12 +6633,16 @@ onActivated(() => {
 }
 
 .instructors-section,
-.course-description,
 .course-header {
   padding-left: 24px;
   padding-right: 24px;
 }
 
+.course-description {
+  padding-left: 24px;
+  padding-right: 24px;
+}
+
 /* 响应式设计 */
 /* 大屏幕 - 使用120px左右边距 */
 @media (min-width: 1400px) {
@@ -8408,6 +8485,17 @@ onActivated(() => {
   border-color: #40a9ff;
 }
 
+.btn-return {
+  background: #52c41a;
+  color: white;
+  border-color: #52c41a;
+}
+
+.btn-return:hover {
+  background: #73d13d;
+  border-color: #73d13d;
+}
+
 @media (max-width: 768px) {
   .practice-layout {
     flex-direction: column;
@@ -9440,4 +9528,43 @@ onActivated(() => {
   height: 40px;
   background: #EDEDED;
 }
+
+/* 下载确认弹窗样式 */
+.download-confirm-modal {
+  background: white;
+  border-radius: 8px;
+  padding: 24px;
+}
+
+.download-confirm-header {
+  margin-bottom: 20px;
+}
+
+.download-confirm-title {
+  font-size: 16px;
+  font-weight: 500;
+  color: #333;
+  text-align: center;
+}
+
+.download-confirm-content {
+  margin-bottom: 24px;
+  text-align: center;
+}
+
+.download-confirm-content p {
+  margin: 8px 0;
+  color: #666;
+}
+
+.download-section-name {
+  font-weight: 500;
+  color: #333 !important;
+}
+
+.download-confirm-actions {
+  display: flex;
+  justify-content: center;
+  align-items: center;
+}
 </style>
\ No newline at end of file
diff --git a/src/views/teacher/ExamPages/QuestionBankManagement.vue b/src/views/teacher/ExamPages/QuestionBankManagement.vue
index ca23a00..b8ac7df 100644
--- a/src/views/teacher/ExamPages/QuestionBankManagement.vue
+++ b/src/views/teacher/ExamPages/QuestionBankManagement.vue
@@ -277,6 +277,9 @@ const questionBankList = ref<QuestionBank[]>([]);
 // 课程列表状态
 const courseOptions = ref<CourseOption[]>([]);
 
+// 当前用户信息
+const currentUser = ref<string>('');
+
 // 新建/编辑题库相关状态
 const showCreateModal = ref(false);
 const isEditMode = ref(false);
@@ -405,7 +408,20 @@ const createColumns = ({
             title: '权限',
             key: 'permissions',
             width: 160,
-            align: 'center' as const
+            align: 'center' as const,
+            render(row: QuestionBank) {
+                const hasPermission = currentUser.value === (row as any).createBy;
+                return h(
+                    'span',
+                    {
+                        style: {
+                            color: hasPermission ? '#52c41a' : '#ff4d4f',
+                            fontWeight: '500'
+                        }
+                    },
+                    hasPermission ? '有' : '无'
+                );
+            }
         },
         {
             title: '创建人',
@@ -546,12 +562,12 @@ const loadQuestionBanks = async () => {
             sequence: index + 1,
             name: repo.title,
             description: repo.remark || '暂无描述',
-            questionCount: repo.questionCount || 0,
-            creator: repo.createBy || '未知',
-            createTime: repo.createTime || '',
-            lastModified: repo.updateTime || '',
+            questionCount: repo.question_count || 0,
+            creator: repo.createByName || '未知',
+            createTime: repo.create_time || '',
+            lastModified: repo.update_time || '',
             courseName: repo.courseName || '暂无课程',
-            createBy: repo.createBy // 添加createBy字段用于权限检查
+            createBy: repo.create_by // 添加createBy字段用于权限检查，使用正确的字段名
         } as QuestionBank & { createBy: string }));
 
         // 应用搜索筛选
@@ -1120,8 +1136,22 @@ const handleContextMenu = (e: MouseEvent) => {
     // 右键菜单功能可以在这里实现
 };
 
+// 获取当前用户信息
+const getCurrentUser = async () => {
+    try {
+        const userInfo = await AuthApi.getUserInfo();
+        if (userInfo.success && userInfo.result) {
+            currentUser.value = userInfo.result.baseInfo.username;
+            console.log('🔍 当前用户username:', currentUser.value);
+        }
+    } catch (error) {
+        console.error('❌ 获取当前用户信息失败:', error);
+    }
+};
+
 // 组件挂载时加载数据
-onMounted(() => {
+onMounted(async () => {
+    await getCurrentUser();
     loadCourseList();
     loadQuestionBanks();
 });