python matlab 带包实现全排列

>> A=[2,5,7];perms(A)

ans =

     7     5     2
     7     2     5
     5     7     2
     5     2     7
     2     7     5
     2     5     7

>> perms(1:4)

ans =

     4     3     2     1
     4     3     1     2
     4     2     3     1
     4     2     1     3
     4     1     3     2
     4     1     2     3
     3     4     2     1
     3     4     1     2
     3     2     4     1
     3     2     1     4
     3     1     4     2
     3     1     2     4
     2     4     3     1
     2     4     1     3
     2     3     4     1
     2     3     1     4
     2     1     4     3
     2     1     3     4
     1     4     3     2
     1     4     2     3
     1     3     4     2
     1     3     2     4
     1     2     4     3
     1     2     3     4

# -*- coding: utf-8 -*-

import itertools
print(list(itertools.permutations([0, 1, 2],3)))