This book is about programming with J2ME on wireless devices with focus on developing games. It is assumed you have some knowledge and programming experience with J2ME and J2SE. The book does not go into detail on topics like how to make high level G

权限设计 用户、角色、用户-角色、模块、权限、模块-权限、角色-模块-权限。 用户可以拥有多个角色，角色可以包含多个用户，多对多。 模块可以包含多个权限，权限可以属于多个模块，多对多。 角色可以根据不同的模块对应不同的权限，多对多。(Permission design Users, roles, users - roles, modules, permissions, modules - permissions, roles - modules - permission