diff --git a/src/renderer/src/views/prepare/container/class-start.vue b/src/renderer/src/views/prepare/container/class-start.vue
index 7df6a8f..3d64129 100644
--- a/src/renderer/src/views/prepare/container/class-start.vue
+++ b/src/renderer/src/views/prepare/container/class-start.vue
@@ -52,7 +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="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 -->
@@ -96,7 +96,7 @@ import * as Http_api from '@/api/apiService'            // api接口
 import useUserStore from "@/store/modules/user"         // 状态管理：user
 import CryptoJS from 'crypto-js'
 
-const baseUrl = import.meta.env.VITE_APP_BUILD_BASE_PATH
+let baseUrl = import.meta.env.VITE_APP_BUILD_BASE_PATH
 const userStore = useUserStore()
 const visible = ref(false)      // 是否打开窗口
 const myClassActive = ref({})   // 我的课件：准备上课的APT课件
@@ -286,30 +286,30 @@ const getQrUrl = async() => {
   const { userName, userId } = userStore.user
   if (!id||!userName) return
   // 原始方法(需要wx登录)
-  const qrCodeUrl = `wxlogin?username=${userName}&nextaction=classteaching&id=${id}`
-  teacherForm.form.qrUrl = baseUrl + qrCodeUrl
-  // // const baseUrl = 'https://localhost:7860'
-  // // token跳转
-  // const url = `/teaching/classteachingonmobile?classcourseid=${id}` // 跳转移动端-上课
-  // let qrCodeUrl = '' // 移动端-二维码地址
-  // try {
-  //   // 走后端缓存url
-  //   const res = await Http_api.toLink.setLink(url) // 设置链接-缓存
-  //   if (res.code == 200) {
-  //     const redisKey = res.data
-  //     const base64Key = CryptoJS.enc.Utf8.parse(redisKey).toString(CryptoJS.enc.Base64) // base64加密
-  //     const enStrUrl = encodeURIComponent(base64Key) // url转码
-  //     qrCodeUrl = `?_server=${enStrUrl}`
-  //     teacherForm.form.qrUrl = baseUrl + qrCodeUrl
-  //   }
-  // } catch (error) { // 异常, 直接加密token
-  //   const jsonStr = JSON.stringify({ url, token: userStore.token }) // json数据：{url, token}
-  //   const key = `Ax19i14Ga6qEDOkGTo` // AES加密-key
-  //   const enStr = CryptoJS.AES.encrypt(jsonStr, key).toString() // AES加密-数据
-  //   const enStrUrl = encodeURIComponent(enStr) // url转码
-  //   qrCodeUrl = `?_web=${enStrUrl}`
-  // }
+  // const qrCodeUrl = `wxlogin?username=${userName}&nextaction=classteaching&id=${id}`
   // teacherForm.form.qrUrl = baseUrl + qrCodeUrl
+  // baseUrl = 'https://localhost:7860'
+  // token跳转
+  const url = `/teaching/classteachingonmobile?classcourseid=${id}` // 跳转移动端-上课
+  let qrCodeUrl = '' // 移动端-二维码地址
+  try {
+    // 走后端缓存url
+    const res = await Http_api.toLink.setLink(url) // 设置链接-缓存
+    if (res.code == 200) {
+      const redisKey = res.data
+      const base64Key = CryptoJS.enc.Utf8.parse(redisKey).toString(CryptoJS.enc.Base64) // base64加密
+      const enStrUrl = encodeURIComponent(base64Key) // url转码
+      qrCodeUrl = `${url}&_server=${enStrUrl}`
+      teacherForm.form.qrUrl = baseUrl + qrCodeUrl
+    }
+  } catch (error) { // 异常, 直接加密token
+    const jsonStr = JSON.stringify({ url, token: userStore.token }) // json数据：{url, token}
+    const key = `Ax19i14Ga6qEDOkGTo` // AES加密-key
+    const enStr = CryptoJS.AES.encrypt(jsonStr, key).toString() // AES加密-数据
+    const enStrUrl = encodeURIComponent(enStr) // url转码
+    qrCodeUrl = `${url}&?_web=${enStrUrl}`
+  }
+  teacherForm.form.qrUrl = baseUrl + qrCodeUrl
 }
 // 定时器监听