python之OrderedDict类

# OrderedDict类使用举例
# 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
from collections import OrderedDict

hoppys = OrderedDict()
hoppys['mike'] = 'swim'
hoppys['tom'] = 'reading'
hoppys['lily'] = 'singing'

print(hoppys)
print('Tom的爱好是：' + hoppys['tom'])
"""
OrderedDict([('mike', 'swim'), ('tom', 'reading'), ('lily', 'singing')])
Tom的爱好是：reading
"""

# 遍历字典
for name in hoppys.keys():
    print('-', hoppys.get(name))
"""
- swim
- reading
- singing
"""

for name, hoppy in hoppys.items():
    print('-', name.title(), hoppy)

"""
- Mike swim
- Tom reading
- Lily singing
"""