for语句 

import math

def main():
    money_per_week=10
    increase_money=10
    total_week=52
    saving=0
    money_list=[]
    for i in range(total_week):
        money_list.append(money_per_week)
        saving =math.fsum(money_list)

        print('第{}周，存入{}，账户累计{}元'.format(i+1,money_per_week,saving))
        money_per_week+=increase_money

if __name__=='_main_':
    main()

 

For <X> in<list>:

<body>

循环变量X在每次循环时，被赋值成对应的元素内容

与while循环的区别

For 循环的次数固定，即所遍历的序列长度

While为无限循环

Range(n)返回一个可迭代的对象

 List(range(n))将迭代类型转换为列表类型

输入

import math
def sav_money_in_n_week(money_per_week,increase_money,total_week):
    saving=0
    money_list=[]
    for i in range(total_week):
        money_list.append(money_per_week)
        saving =math.fsum(money_list)

        print('第{}周，存入{}，账户累计{}元'.format(i+1,money_per_week,saving))
        money_per_week+=increase_money
def main():
    money_per_week=float (input('请输入每周存入金额'))
    increase_money=float (input('请输入每周递增金额'))
    total_week=float (input('请输入总共的周数:'))
    sav_money_in_n_week(money_per_week,increase_money,total_week)
if __name__=='_main_':
    main()

 

posted @ 2018-10-27 17:43  逐梦武威  阅读(136)  评论(0)  编辑  收藏  举报