以下幾種方法來模擬enum：（感覺方法一簡單實用）
複製** **如下:
# way1
class directions:
up = 0
down = 1
left = 2
right =3
print directwww.cppcns.comions.dow程式設計客棧n
# 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):
www.cppcns.com setattr(self, key, i)
www.cppcns.com; return enum()
e_dir = enum('up down left right')
print e_dir.down
# way5
# some times we need use enum value as string
directions =
print direct程式設計客棧ions['down']
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