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f下午试卷案例
第1题阅读下列说明,回答问题1至问题4,将解答填入答题纸的对应栏内。【说明】某证券交易所为了方便提供证券交易服务,欲开发一证券交易平台,该平台的主要功能如下:(1)开户。根据客户服务助理提交的开户信息,进行开户,并将客户信息存入客户记录中,账户信息(余额等)存入账户记录中;(2)存款。客户可以向其账户中存款,根据存款金额修改账户余额;(3)取款。客户可以从其账户中取款,根据取款金额修改账户余额;(4)证券交易。客户和经纪人均可以进行证券交易(客户通过在线方式,经纪人通过电话),将交易信息存入交易记录中;(5)检查交易。平台从交易记录中读取交易信息,r