enum BackActionEnum {
  refresh,
}

enum LoginEnum { apple, fastLogin }

enum InventoryInOrOutEnum { In, Out }

// 创建一个映射，将 InventoryInOrOutEnum 值与整数关联起来
const Map<InventoryInOrOutEnum, int> InventoryInOrOutEnumValues = {
  InventoryInOrOutEnum.In: 1,
  InventoryInOrOutEnum.Out: 2,
};