【摘要】 提出一种多用户环境下权限管理的通用模型，对数据库的操作可分为录入、修改、查询3种基本操作，8种组合，由分配权限生成权限字符串，根据用户权限字符申在主菜单上分配操作权限，最后给出编程举例。更多还原

【Abstract】 A general model of right management in Multi-user environment is provided in this paper. The operation for a database may be divided three easic operations, eight combinations. Arights string was generated by distributing rights. To meet the requirements of the user’s right, the string distributes the operrating rights in the main menu, then provides the programming example更多还原