Python实现不同格式打印九九乘法表

# 1、左下三角形
for i in range(1,10):
    for j in range(1,i+1):
        # print(i,'*',j,'=',i*j,end=', ')
        print('%d*%d=%2d' % (i,j,i*j),end=', ')
    print('')
# 打印结果：
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, 

# 2、左上三角形
for i in range(1,10):
    for j in range(i,10):
        print('%d*%d=%2d' % (i,j,i*j),end=', ')
    print( '' )
# 打印结果：
1*1= 1, 1*2= 2, 1*3= 3, 1*4= 4, 1*5= 5, 1*6= 6, 1*7= 7, 1*8= 8, 1*9= 9, 
2*2= 4, 2*3= 6, 2*4= 8, 2*5=10, 2*6=12, 2*7=14, 2*8=16, 2*9=18, 
3*3= 9, 3*4=12, 3*5=15, 3*6=18, 3*7=21, 3*8=24, 3*9=27, 
4*4=16, 4*5=20, 4*6=24, 4*7=28, 4*8=32, 4*9=36, 
5*5=25, 5*6=30, 5*7=35, 5*8=40, 5*9=45, 
6*6=36, 6*7=42, 6*8=48, 6*9=54, 
7*7=49, 7*8=56, 7*9=63, 
8*8=64, 8*9=72, 
9*9=81, 

# 3、右上三角形
for i in range(1,10):
    for k in range( 1, i ):
        print( end="        " )#通过这一行代码可以控制三角形的形状
    for j in range(i,10):
        print('%d*%d=%2d' % (i,j,i*j),end=', ')
    print( '' )
# 打印结果：
1*1= 1, 1*2= 2, 1*3= 3, 1*4= 4, 1*5= 5, 1*6= 6, 1*7= 7, 1*8= 8, 1*9= 9, 
        2*2= 4, 2*3= 6, 2*4= 8, 2*5=10, 2*6=12, 2*7=14, 2*8=16, 2*9=18, 
                3*3= 9, 3*4=12, 3*5=15, 3*6=18, 3*7=21, 3*8=24, 3*9=27, 
                        4*4=16, 4*5=20, 4*6=24, 4*7=28, 4*8=32, 4*9=36, 
                                5*5=25, 5*6=30, 5*7=35, 5*8=40, 5*9=45, 
                                        6*6=36, 6*7=42, 6*8=48, 6*9=54, 
                                                7*7=49, 7*8=56, 7*9=63, 
                                                        8*8=64, 8*9=72, 
                                                                9*9=81, 
# 4、右下三角形
for i in range(1,10):
    for k in range( 1, 10-i ):
            print( end="        " )
    for j in range(1,i+1):
        print( '%d*%d=%2d' % (i, j, i * j), end=', ' )
    print('')
# 打印结果：
                                                                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, 

# 5、完整格式（长方形or正方形）
for i in range(1,10):
    for j in range(1,10):
        # print(i,'*',j,'=',i*j,end=', ')
        print('%d*%d=%2d' % (i,j,i*j),end=', ')
    print(' ')
# 打印结果：
1*1= 1, 1*2= 2, 1*3= 3, 1*4= 4, 1*5= 5, 1*6= 6, 1*7= 7, 1*8= 8, 1*9= 9,  
2*1= 2, 2*2= 4, 2*3= 6, 2*4= 8, 2*5=10, 2*6=12, 2*7=14, 2*8=16, 2*9=18,  
3*1= 3, 3*2= 6, 3*3= 9, 3*4=12, 3*5=15, 3*6=18, 3*7=21, 3*8=24, 3*9=27,  
4*1= 4, 4*2= 8, 4*3=12, 4*4=16, 4*5=20, 4*6=24, 4*7=28, 4*8=32, 4*9=36,  
5*1= 5, 5*2=10, 5*3=15, 5*4=20, 5*5=25, 5*6=30, 5*7=35, 5*8=40, 5*9=45,  
6*1= 6, 6*2=12, 6*3=18, 6*4=24, 6*5=30, 6*6=36, 6*7=42, 6*8=48, 6*9=54,  
7*1= 7, 7*2=14, 7*3=21, 7*4=28, 7*5=35, 7*6=42, 7*7=49, 7*8=56, 7*9=63,  
8*1= 8, 8*2=16, 8*3=24, 8*4=32, 8*5=40, 8*6=48, 8*7=56, 8*8=64, 8*9=72,  
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,