python题目：输出乘法表的上三角和下三角形状

for i in range(1,10):

    s=" "

    for j in range(1,10):

        if (i < j):

            s += "       "

        else:

            s += str.format("{0:1}*{1:1}={2:<3}",i,j,i*j)

    print(s)



for i in range(1,10):

    s=" "

    for j in range(1,10):

        if (i > j):

            s += "       "

        else:

            s += str.format("{0:1}*{1:1}={2:<3}",i,j,i*j)

    print(s)