修改

src/student/main.ts

@@ -22,6 +22,10 @@ const app = createApp(App)
 // const vconsole = new Vconsole()
 // 设置是否显示导航栏 0 显示 1 不显示
 postMessage({ api: 'setBarStatus', content: { status: 0 } })
+postMessage({
+  api: 'backIconChange',
+  content: { backIconHide: true }
+})
 postMessage(
   {
     api: 'getVersion'

src/teacher/main.ts

@@ -26,6 +26,10 @@ const app = createApp(App)
 //   }
 // });
 postMessage({ api: 'setBarStatus', content: { status: 0 } })
+postMessage({
+  api: 'backIconChange',
+  content: { backIconHide: true }
+})
 postMessage(
   {
     api: 'getVersion'

src/tenant/main.ts

@@ -18,6 +18,10 @@ const app = createApp(App)
 // import Vconsole from 'vconsole'
 // const vconsole = new Vconsole()
 postMessage({ api: 'setBarStatus', content: { status: 0 } })
+postMessage({
+  api: 'backIconChange',
+  content: { backIconHide: true }
+})
 postMessage(
   {
     api: 'getVersion'