linux下的python小程序——99乘法表

#!/usr/bin/python
## 9 9 9

for x in range(1,10) :
      for y in range(1,10) :
           z = x * y
           s = str(x)+"*"+str(y)+"="+str(z)
           while len(s) < 7 :
                   s = s + ' '
           if y <= x :
                  q = ''
                  q = q +" "+ s
       print q