import 'package:get/get.dart'; class LoginController extends GetxController { var username = ''.obs; var password = ''.obs; var rememberPassword = false.obs; void login() { if (username.isEmpty || password.isEmpty) { Get.snackbar('错误', '请输入完整的信息'); } else { // 在这里执行登录逻辑,例如 API 调用 print('用户名: ${username.value}, 密码: ${password.value}'); } } }