【Python数据分析与挖掘实战】20161019作业——逆向输出乘法口诀表

课堂上老师演示了用python输出打印乘法口诀表，但课堂演示的乘法表没有对齐，我在课后对其进行了处理，详见代码中方法chengfakoujue()

作业：逆向输出乘法口诀，代码见方法ni_chengfakoujue()

# -*- coding:utf-8 -*-



'''

课堂案例：输出乘法口诀表

'''





def chengfakoujue():

    for i in range(1, 10):

        for j in range(1, i + 1):

            if len(str(i * j)) == 1:

                print(str(i) + '*' + str(j) + '=' + str(i * j), end="  ")

            else:

                print(str(i) + '*' + str(j) + '=' + str(i * j), end=" ")

        print()





'''

作业：逆向输出乘法口诀

'''





def ni_chengfakoujue():

    for i in range(9, 0, -1):

        kongjue_hang = []

        kongge = " " * (9 - i) * 7

        for j in range(i, 0, -1):

            if len(str(i * j)) == 1:

                gongshi = str(i) + '*' + str(j) + '=' + str(i * j) + " "

            else:

                gongshi = str(i) + '*' + str(j) + '=' + str(i * j)

            kongjue_hang.append(gongshi)

            s = kongge + " ".join(kongjue_hang)

        print(s)





if __name__ == '__main__':

    chengfakoujue()

    print('-------------------------华丽的分割线--------------------------')

    ni_chengfakoujue()

附上运行结果：