以下几种方法来模拟enum：（感觉方法一简单实用）
# way2
dirUp, dirDown, dirLeft, dirRight = range(4)
print dirDown
# way3
import collections
dircoll=collections.namedtuple('directions', ('UP', 'DOWN', 'LEFT', 'RIGHT'))
directions=dircoll(0,1,2,3)
print directions.DOWN
# way4
def enum(args, start=0):
class Enum(object):
__slots__ = args.split()
def __init__(self):
for i, key in enumerate(Enum.__slots__, start):
setattr(self, key, i)
return Enum()
立即学习“Python免费学习笔记（深入）”；
e_dir = enum('up down left right')
print e_dir.down
# way5
# some times we need use enum value as string
Directions = {'up':'up','down':'down','left':'left', 'right':'right'}
print Directions['down']
python怎么学习？python怎么入门？python在哪学？python怎么学才快？不用担心，这里为大家提供了python速学教程(入门到精通)，有需要的小伙伴保存下载就能学习啦！
广告Copyright 2014-2025 https://www.php.cn/ All Rights Reserved | php.cn | 湘ICP备2023035733号
605
收藏
