天善-Python数据分析与挖掘实战-day1-作业

作业：输出九九乘法表

# coding:utf8

import platform



print("操作系统：" + platform.system() + repr(platform.win32_ver()))

print("python版本：" + platform.python_version())



for i in range(1, 10):

    a = ""

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

        a = a + str(i) + "*" + str(j) + "=" + str(i * j) + "; "

    print(a)

print('逆向')

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

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

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

    print()

输出：

操作系统：Windows('7', '6.1.7601', 'SP1', 'Multiprocessor Free')

python版本：3.5.1

1*1=1; 

2*1=2; 2*2=4; 

3*1=3; 3*2=6; 3*3=9; 

4*1=4; 4*2=8; 4*3=12; 4*4=16; 

5*1=5; 5*2=10; 5*3=15; 5*4=20; 5*5=25; 

6*1=6; 6*2=12; 6*3=18; 6*4=24; 6*5=30; 6*6=36; 

7*1=7; 7*2=14; 7*3=21; 7*4=28; 7*5=35; 7*6=42; 7*7=49; 

8*1=8; 8*2=16; 8*3=24; 8*4=32; 8*5=40; 8*6=48; 8*7=56; 8*8=64; 

9*1=9; 9*2=18; 9*3=27; 9*4=36; 9*5=45; 9*6=54; 9*7=63; 9*8=72; 9*9=81; 

逆向

9*1=9; 9*2=18; 9*3=27; 9*4=36; 9*5=45; 9*6=54; 9*7=63; 9*8=72; 9*9=81; 

8*1=8; 8*2=16; 8*3=24; 8*4=32; 8*5=40; 8*6=48; 8*7=56; 8*8=64; 

7*1=7; 7*2=14; 7*3=21; 7*4=28; 7*5=35; 7*6=42; 7*7=49; 

6*1=6; 6*2=12; 6*3=18; 6*4=24; 6*5=30; 6*6=36; 

5*1=5; 5*2=10; 5*3=15; 5*4=20; 5*5=25; 

4*1=4; 4*2=8; 4*3=12; 4*4=16; 

3*1=3; 3*2=6; 3*3=9; 

2*1=2; 2*2=4; 

1*1=1;