活期储蓄管理系统：模拟银行的活期管理业务，能够完成储户开户、销户、存入、支出活动频繁，系统设计要求：能比较迅速地找到储户的帐户，以实现存款、取款记账；能比较简单，迅速地实现插入和删除，以实现开户和销户的需要；能够实现储户对存入、支出明细的查询(Current savings management system: to simulate the bank's current management business, to complete the savers to open an account, sell accounts, deposit, frequent spending activities, system design requirements: to more quickly find the savers account in order to deposit, withdrawals account; to compare Simply and quickly insert and delete, in order to achieve the needs of the account opening and sales; depositors can achieve the deposit, the breakdown of the query)