.按月、季度，年进行统计 2.银行存款利息的功能要实现 3.投资的收入与支出每年要有统计图 4.收入与支出的差值要统计 5。统计余额 -. Monthly, quarterly and annual statistics 2. Interest on bank deposits to achieve the function 3 Investment income and expenditure statistics each year in Figure 4 the diffe