diff --git a/src/renderer/src/views/prepare/container/class-start.vue b/src/renderer/src/views/prepare/container/class-start.vue
index ed30234..a453c3c 100644
--- a/src/renderer/src/views/prepare/container/class-start.vue
+++ b/src/renderer/src/views/prepare/container/class-start.vue
@@ -52,6 +52,7 @@
               <div :title="value" v-if="!!value">
                 <vue-qr :text="value" :size="200" :margin="10" colorDark="green" colorLight="white" :logoSrc="getStaticUrl('/img/logo.png')" :logoScale="0.2" :dotScale="0.7"></vue-qr>
               </div>
+              <el-button type="primary" :icon="Refresh" round title="刷新" @click="getQrUrl()" />
 <!--              <el-button type="warning" :loading="dt.loadingDel" @click="removeClasscourse()">删除记录</el-button>-->
              </template>
              <!-- 手机登录 -->
@@ -80,6 +81,7 @@
 <script setup>
 // 功能说明：课程开始
 import { onMounted, reactive, ref, watchEffect, watch, nextTick } from 'vue' // vue
+import { Refresh } from '@element-plus/icons-vue'
 import { ElMessage, ElMessageBox } from 'element-plus'  // ui框架: 消息提示
 import vueQr from 'vue-qr/src/packages/vue-qr.vue'      // 插件: 二维码
 import imChat from '@/views/tool/components/imChat.vue' // im-chat-子组件
@@ -309,6 +311,7 @@ const getQrUrl = async() => {
   }
   teacherForm.form.qrUrl = baseUrl + qrCodeUrl
 }
+// 定时器监听
 
 // ================== 监听 =======================
 // im-chat: 聊天事件 {type, data}