Update index.tsx

src/student/invite-teacher/invite-success/index.tsx

@@ -3,6 +3,7 @@ import styles from './index.module.less'
 import successTips from '../images/success_tips.png'
 import { Button, Icon } from 'vant'
 import { browser } from '@/helpers/utils'
+import { postMessage } from '@/helpers/native-message'
 
 import wxBg from '../../down-load/images/wx_bg.png'
 import request from '@/helpers/request'