Python枚举 - 获取字符串转换的枚举值 [英] Python enum - getting value of enum on string conversion
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问题描述
我有以下枚举定义
from enum import Enum
class D(Enum):
x = 1
y = 2
print(D.x)
现在的打印值是
D.x
而是我想要枚举的值被打印
instead I wanted the enum's value to be print
1
可以做些什么来实现此功能。
what can be done to achieve this functionality.
推荐答案
您正在打印枚举对象。如果您只想打印,请使用 .value
属性:
You are printing the enum object. Use the .value
attribute if you wanted just to print that:
print(D.x.value)
请参阅
对枚举成员及其属性的程序访问部分:
如果您有枚举成员,需要其名称或值:
If you have an enum member and need its name or value:
>>>
>>> member = Color.red
>>> member.name
'red'
>>> member.value
1
您可以添加一个 __ str __
方法到您的枚举,如果您想要的是提供自定义字符串表示:
You could add a __str__
method to your enum, if all you wanted was to provide a custom string representation:
class D(Enum):
def __str__(self):
return str(self.value)
x = 1
y = 2
演示:
>>> from enum import Enum
>>> class D(Enum):
... def __str__(self):
... return str(self.value)
... x = 1
... y = 2
...
>>> D.x
<D.x: 1>
>>> print(D.x)
1
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