importenumclassTest(enum.Enum):A=1B=2test_dict={}foriinTest:test_dict[i]='value.'+str(i)print(test_dict)# 输出结果为 {<Test.A: 1>: 'value.Test.A', <Test.B: 2>: 'value.Test.B'}print(test_dict[Test.A])# 输出结果为 value.Test.A 前文提到枚举成员的名称是唯一的,但枚举成员...
defget_value_by_name(enum_class,name):members=enum_class.__members__returnmembers[name].value# 使用示例color_name='GREEN'color_value=get_value_by_name(Color,color_name)print(f"The value of{color_name}is{color_value}") 1. 2. 3. 4. 5. 6. 7. 8. 在这个示例中,我们定义了一个名为...
2. Color是枚举类,Color.RED等是枚举成员,枚举成员拥有name和value属性 3. 虽然使用class关键字创建,但枚举并不是常规意义上的python类 枚举成员的展现形式: >>>print(Color.RED) Color.RED >>>print(repr(Color.RED)) <Color.RED: 2> 枚举成员的type类型是其所属的枚举类: >>>type(Color.RED) <enum ...
return value class SomeEnum1(Enum, metaclass=SomeEnumMeta): A1 = "123" class SomeEnum2(Enum, metaclass=SomeEnumMeta): A1 = partial(lambda x: x) def __call__(self, *args, **kwargs): return self.value(*args, **kwargs) print(SomeEnum1.__getattr__("A1")) print(SomeEnum2.__ge...
from enum import Enum class Status(Enum): WORKING = 0 BREAK = 1 EATING = 2 SLEEPING = 3 # 可以通过identity比较 print(Status.WORKING.value < Status.BREAK.value) # 也可以迭代 for s in Status: print(s) 2. 为什么要有枚举? 为什么要有枚举呢?PEP 435中这样介绍 The properties of an enumera...
<enum'Week'> Week.WEDNESDAY <enum'Week'> 枚举成员中包含标签名和该标签对应的值 today = Week.FRIDAY print('Today is '+ today.name +'. The number of today is '+str(today.value)) --- TodayisFRIDAY. The number of todayis4 包含相同值的枚举类的迭代,默认情况...
2. Color是枚举类,Color.RED等是枚举成员,枚举成员拥有name和value属性 3. 虽然使用class关键字创建,但枚举并不是常规意义上的python类 枚举成员的展现形式: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 >>>print(Color.RED)Color.RED>>>print(repr(Color.RED))<Color.RED:2> ...
today =Vip.FRIDAYprint('Today is'+ today.name +'. The number of today is'+str(today.value))---TodayisFRIDAY. The number of todayis4 示例三:包含相同值的枚举类的迭代,默认情况下不会输出别名,但可通过迭代__members__来显示所有成员标签 fromenumimportEnumclassWeek(Enum):MONDAY=0TUESDAY= 1...
for index, value in enumerate(letters): lowercase = value[0] uppercase = value[1] print(f"Index '{index}' refers to the letters '{lowercase}' and '{uppercase}'") 但是,元组拆包被证明是一种更有效的方法。比如: letters = [('a', 'A'), ('b', 'B'), ('c', 'C')] ...
值将由 _generate_next_value_() 来选择,该函数可以被重载: >>> >>> class AutoName(Enum): ... def _generate_next_value_(name, start, count, last_values): ... return name ... >>> class Ordinal(AutoName): ... NORTH = auto() ... SOUTH = auto() ... EAST = auto()...