for i in range(1, 10):

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

         print('%sx%s=%s ' % (j, i, j * i), end='')

     print()

 import sys

 if len(sys.argv) != 2:

     print('请输入要生成乘法表要相乘到多少!')

     exit(5)

 for i in range(1, int(sys.argv[1])+1):

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

        print('%sx%s=%s ' % (j, i, j * i), end='')

     print()