编写一个程序，要求用户输入在基金成立时的购买金额和基金运作第一周的每日份额净值，统计一周来用户的收益情况(sjtu 二专作业1）-Write a program that requires users to enter in the fund amount and the purchase of the establishment of the first week of operation of the Fund' s daily share of the net, statistical week user' s earnings (sjtu two special operations 1)