1.默认启动界面替换。

app/src/main/java/com/quansu/heifengwuliu/activity/LoginActivity.kt

@@ -9,7 +9,6 @@ class LoginActivity : MBActivity<LoginVModel, ActivityLoginBinding>() {
     override fun title(): String? {
         return null
     }
-
     override fun binding(): ActivityLoginBinding {
         return ActivityLoginBinding.inflate(layoutInflater)
     }