1 [root@PythonPC test100]# cat 1.py  2 #!/usr/bin/python 3 # -*- coding=utf-8 -*- 4  5 list=[‘1‘,‘2‘,‘3‘,‘4‘] 6  7 for i in range(4): 8     for j in range(4): 9         for k in range(4):10             if list[i] != list[j] and list[i] != list[k] and list[j] != list[k]:11                 print list[i]+list[j]+list[k]12 [root@PythonPC test100]# python 1.py13 12314 12415 13216 13417 14218 14319 21320 21421 23122 23423 24124 24325 31226 31427 32128 32429 34130 34231 41232 41333 42134 42335 43136 43237 [root@PythonPC test100]#