python之九九乘法表

python之九九乘法表，一行一行的打印出来。

for i in range(1,2):
    print( '%d X %d = %d' % (i,1,i*1) ,end = ' ' )
print('') 
for i in range(1,3):
    print( '%d X %d = %d' % (i,2,i*2) ,end = ' ' )
print('') 
for i in range(1,4):
    print( '%d X %d = %d' % (i,3,i*3) ,end = ' ' )
print('') 
for i in range(1,5):
    print( '%d X %d = %d' % (i,4,i*4) ,end = ' ' )
print('')
for i in range(1,6):
    print( '%d X %d = %d' % (i,5,i*5) ,end = ' ' )
print('') 
for i in range(1,7):
    print( '%d X %d = %d' % (i,6,i*6) ,end = ' ' )
print('')
for i in range(1,8):
    print( '%d X %d = %d' % (i,7,i*7) ,end = ' ' )
print('') 
for i in range(1,9):
    print( '%d X %d = %d' % (i,8,i*8) ,end = ' ' )
print('')
for i in range(1,10):
    print( '%d X %d = %d' % (i,9,i*9) ,end = ' ' )
print('')

合并成2层for循环：

for i in range(1,10):
    for j in range(1,i+1):
        print( '%d X %d = %d' % (j,i,i*j),end = ' ' )
    print(' ')

九九乘法表运行结果如下：

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