Python 九九乘法表 倒三角形 代码 - 右对齐

for i in range(9, 0, -1):
    for j in range(i, 0, -1):
        print('{0:2d}x{1:2d}={2:2d}'.format(j, i, i*j), end='  ')
    print()

输出：

 9x9=81  8x9=72  7x9=63  6x9=54  5x9=45  4x9=36  3x9=27  2x9=18  1x9= 9  
 8x8=64  7x8=56  6x8=48  5x8=40  4x8=32  3x8=24  2x8=16  1x8= 8  
 7x7=49  6x7=42  5x7=35  4x7=28  3x7=21  2x7=14  1x7= 7  
 6x6=36  5x6=30  4x6=24  3x6=18  2x6=12  1x6= 6  
 5x5=25  4x5=20  3x5=15  2x5=10  1x5= 5  
 4x4=16  3x4=12  2x4= 8  1x4= 4  
 3x3= 9  2x3= 6  1x3= 3  
 2x2= 4  1x2= 2  
 1x1= 1