2018-12-01 天天向上

天天向上

#daydayup

def daydayup(df):

    dayup = 1

    for i in range(365):

        if i%7 in [6,1]:

            dayup = dayup * (1 - 0.01)

        else:

            dayup = dayup * (1 + df)

    return dayup

if __name__ == "__main__":

    a = pow(1.01,365)

    dayfactor = 0.01

    while daydayup(dayfactor) < a :

        dayfactor += 0.001

    print("the dayfactor is {:.3f}, and the dayup is {:.3f}.".format(dayfactor,daydayup(dayfactor)))