python基础一 ------"有序"的字典

"有序"字典：按照写入字典的先后顺序排序的字典(比list优点是按键查询)

 #-*-coding:utf-8 -*-
 #"有序"字典：按照写入字典的先后顺序排序的字典(比list优点是按键查询)
 from collections import OrderedDict
 d = OrderedDict()
 f = {}
 l = [i for i in range(10)]
 for x in "ABCDEFGHIJ":
     i = l.pop()
     d[x],f[x] = i,i

 print(type(d))
 print(d)
 print("-----------------------")
 print(type(f))
 print(f)

运行截图：