python之OrderedDict类

 1 # OrderedDict类使用举例
 2 # OrderedDict类的使用与字典相似，不同的是OrderedDict类会记录键值对的添加顺序
 3 from collections import OrderedDict
 4 
 5 hoppys = OrderedDict()
 6 hoppys['mike'] = 'swim'
 7 hoppys['tom'] = 'reading'
 8 hoppys['lily'] = 'singing'
 9 
10 print(hoppys)
11 print('Tom的爱好是：' + hoppys['tom'])
12 
13 for name, hoppy in hoppys.items():
14     print('-', name.title(), hoppy)

 运行结果：

1 OrderedDict([('mike', 'swim'), ('tom', 'reading'), ('lily', 'singing')])
2 Tom的爱好是：reading
3 - Mike swim
4 - Tom reading
5 - Lily singing