《python语言程序设计》2018版第8章第14题金融:信用卡号合法性 利用6.29题

这是用数字来进行分辨的

is_txt = 4383576018402626 #合法

def split_the_data_even(vis_n):
    current_a1 = vis_n // 10000
    a_t1 = vis_n % 10000
    # print("1th", a_t1)

    a_t2 = current_a1 % 10000
    # print("2th", a_t2)

    current_a3 = current_a1 // 10000
    a_t3 = current_a3 % 10000
    # print("3th", a_t3)

    a_t4 = current_a3 // 10000
    # print("4th", a_t4)

    even1 = a_t1 % 10
    even2 = a_t1 // 100 % 10

    even3 = a_t2 % 10
    even4 = a_t2 // 100 % 10

    even5 = a_t3 % 10
    even6 = a_t3 // 100 % 10

    even7 = a_t4 % 10
    even8 = a_t4 // 100 % 10

    return even1, even2, even3, even4, even5, even6, even7, even8


# 奇数
def split_the_data_odd(vis_n):
    current_a1 = vis_n // 10000
    a_t1 = vis_n