说明：  主要功能包括散客开单、团体开单、宾客结帐、客房预订、营业查询、客户管理、网络设置、系统设置等等。 详细说明见阳光酒店管理系统需求规格说明书
(Key features include individual billing, group billing, guests checkout, room reservations and business inquiries, customer management, network settings, system settings, and so on. Describe see the sun hotel management system requirements specification)