python OrderDict

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我是靠谱客的博主着急火车，最近开发中收集的这篇文章主要介绍python OrderDict，觉得挺不错的，现在分享给大家，希望可以做个参考。

概述

# encoding: utf-8
import csv
import collections
d = {'banana':3,'apple':4,'pear':1,'orange':2}
print(d)
kd = collections.OrderedDict(sorted(d.items(),key = lambda t:t[0]))
print('key order')
print(kd)
vd = collections.OrderedDict(sorted(d.items(),key = lambda t:t[1]))
print('value order')
print(vd)
print(type(vd))

{'banana': 3, 'apple': 4, 'pear': 1, 'orange': 2}
key order
OrderedDict([('apple', 4), ('banana', 3), ('orange', 2), ('pear', 1)])
value order
OrderedDict([('pear', 1), ('orange', 2), ('banana', 3), ('apple', 4)])
<class 'collections.OrderedDict'>
Process finished with exit code 0

转载于:https://www.cnblogs.com/xiaodebing/p/9882253.html