0x07-简单使用一下 Python enum

# Example 1
if index == 10:
    dosomething()
# Example 2
MAX_INDEX = 10
if index = MAX_INDEX:
    dosomething()
# Example 
from enum import IntEnum
class Index(IntEnum):
    MAX = 10
    MIN = 0
if index = Index.MAX:
    dosomething()

from enum import Enum
class Color(Enum):
    RED = 1
    GREEN = 2
    BLUE = 3

>>> Color.RED
<Color.RED>
>>> Color.RED.name
Color
>>> Color.RED.value
1

from enum import Enum, unique
@unique
class Mistake(Enum):
    ONE = 1
    TWO = 2
    THREE = 3
    FOUR = 3

from enum import Enum, auto
class Color(Enum):
    RED = auto()
    BLUE = auto()
    GREEN = auto()

list(Color)

class AutoName(Enum):
    def _generate_next_value_(name, start, count, last_values):
        return name

class Ordinal(AutoName):
    NORTH = auto()
    SOUTH = auto()
    EAST = auto()
    WEST = auto()

list(Ordinal)