Python 中的 IntEnum 和 StrEnum 是通过多重继承来实现的,它们分别继承了 int 和 str 类: class IntEnum(int, Enum): pass class StrEnum(str, Enum): pass 1. 2. 3. 4. 5. 通过这种继承方式,Python 会自动在 IntEnum 或 StrEnum 的 MRO(Method Resolution Order,方法解析顺序)中找到合适的转换方法...
我们可以使用enumerate()来实现: for i, j in enumerate(example): print(i, j) enumerate()提供了强大的功能,例如,当您需要获取索引列表时,它会派上用场: (0, seq[0]), (1, seq[1]), (2, seq[2]), ... 案例研究1:枚举字符串 字符串只是一个列表 为了更好地理解字符串枚举,我们可以将给定的...
周几Return:---boolExample:is_weekend(1)->Trueis_weekend(6)->Falseis_weekend(7)->False""" # 检查是不是工作日returnweekdayin(MONDAY,TUESDAY,WEDNESDAY,THURSDAY,FRIDAY)defis_work_day_enum(weekday):# 第一种写法 #returnweekdayin(Weekdays.MONDAY,Weekdays.TUESDAY,Weekdays.WEDNESDAY,Weekdays.THURSDA...
这可以在任何需要使用枚举值的地方完成,例如函数、类或其他代码块。 defexample_function(enum_param):ifenum_param==MyEnum.ENUM_VALUE1:print("枚举值为ENUM_VALUE1")elifenum_param==MyEnum.ENUM_VALUE2:print("枚举值为ENUM_VALUE2")elifenum_param==MyEnum.ENUM_VALUE3:print("枚举值为ENUM_VALUE3")el...
1. When and where to use enums? When you have a variable that takes one of a limited set of possible values. For example, the days of the week: classWeekday(Enum):MONDAY=1TUESDAY=2WEDNESDAY=3THURSDAY=4FRIDAY=5SATURDAY=6SUNDAY=7 ...
enumerate字典上是枚举、列举的意思。 C语言中关键字enum也是enumerate的缩写。 python中enumerate方法,返回一个enumerate类型。参数一般是可以遍历的的东西,比如列表,字符串什么的。 python文档中是这么说的: enumerate(sequence, [start=0]) Return an enumerate object. sequence must be a sequence, an iterator, ...
attributes on the class with the same name (see Enum for an example). """def__init__(self, fget=None, fset=None, fdel=None, doc=None): self.fget = fget self.fset = fset self.fdel = fdel# next two lines make DynamicClassAttribute act the same as propertyself.__doc__ = doc...
from enum import Enum, unique @unique class Season(Enum): SPRING = 1 SUMMER = 2 AUTUMN = 3 WINTER = 3 # WINTER = 4 for season in Season: print(season) The example fails with theValueError: duplicate values found in <enum 'Season'>: WINTER -> AUTUMNerror, because the AUTUMN and WIN...
"format":"idn-email"# 格式-邮箱},"url":{"type":"string","format":"uri"# 格式-网址},"ip":{"type":"string","format":"ipv4"# 格式-ip},"iphone":{"type":"string","pattern":"^(+86)?-?1[3-9]d{9}$"# 正则 手机号},"sex":{"type":"string",# 枚举"enum":["男","女"...
enumerate字典上是枚举、列举的意思。 C语言中关键字enum也是enumerate的缩写。 python中enumerate方法,返回一个enumerate类型。参数一般是可以遍历的的东西,比如列表,字符串什么的。 python文档中是这么说的: enumerate(sequence, [start=0]) Return an enumerate object. sequence must be a sequence, an iterator, ...