Python creates an ordered dictionary ordereddict ()

Python ordered dictionary ordereddict

#-*-Coding:utf-8-*-"" "  Python ordered dictionary  import module Collections" "" Import collections# dictionary created by Ordereddict class is ordered dic = Collections. Ordereddict () dic[' k1 '] = ' v1 ' dic[' k2 '] = ' v2 ' dic[' K3 '] = ' v3 ' Print dic ' ""    is similar to a list of ways to implement a dictionary ordered creation of the    list, add the list element K1, The K1 as the dictionary key,    because the list is sequential, so the traversal list can be ordered to traverse the dictionary all Key "" "dic = {' K1 ': ' V1 ', ' K2 ': ' V2 ', ' K3 ': ' V3 '}li = [' K1 ', ' K2 ', ' K3 ']

　　

　　

Python creates an ordered dictionary ordereddict ()