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.
Enum string comparison To compare a string with an enum, extend from thestrclass when declaring your enumeration class, e.g.class Color(str, Enum):. You will then be able to compare a string to an enum member using the equality operator==. How to compare a string with an Enum in Pyt...
by whitespace.The base defaults to10\.Valid bases are0and2-36.Base0means to interpret the base from the stringasan integer literal.>>>int('0b100',base=0)4Type:typeSubclasses:bool,IntEnum,IntFlag,_NamedIntConstant 在ipython里面通过问号?来查看其对应的说明,其中的Type就是它的类型,可以看到abs是...
绝大部分重要的应用,总是会先将正则表达式编译,之后在进行操作。 在3.6 版更改: 标志常量现在是RegexFlag类的实例,这个类是enum.IntFlag的子类。 re.compile(pattern,flags=0) 将正则表达式的样式编译为一个正则表达式对象(正则对象),可以用于匹配,通过这个对象的方法match(),search()以及其他如下描述。 这个表达式...
在3.6 版更改: 标志常量现在是 RegexFlag 类的实例,这个类是 enum.IntFlag 的子类。 re.compile(pattern, flags=0) 将正则表达式的样式编译为一个 正则表达式对象 (正则对象),可以用于匹配,通过这个对象的方法 match(), search() 以及其他如下描述。 这个表达式的行为可以通过指定 标记 的值来改变。值可以是以...
save_flag(image,f'{cc}.gif')print(cc, end=' ', flush=True) ⑫returnlen(cc_list)defmain(downloader:Callable[[list[str]],int]) ->None: ⑬ DEST_DIR.mkdir(exist_ok=True) ⑭ t0 = time.perf_counter() ⑮ count = downloader(POP20_CC) ...
In the API specification, the values ofenumtypes appear in lower case, because that is what is used for XML and JSON. The Python convention, however, is to capitalizeenumvalues. Reading the attributes of instances of types is done using the corresponding properties: ...
OUT MVCC_ENUMVALUE *pEnumValue) { return MV_CC_GetEnumValue(m_hDevHandle, strKey, pEnumValue); } int CMvCamera::SetEnumValue(IN const char* strKey, IN unsigned int nValue) { return MV_CC_SetEnumValue(m_hDevHandle, strKey, nValue); } int CMvCamera::SetEnumValueByString(IN const...
CAP_PROP_BACKEND =42, //!< Current backend (enum VideoCaptureAPIs). Read-only property CAP_PROP_CHANNEL =43, //!< Video input or Channel Number (only for those cameras that support) CAP_PROP_AUTO_WB =44, //!< enable/ disable auto white-balance ...
Typeclasses from the Haskell base libraries, including Functor, Applicative, Monad, Enum, Num, and all the rest Standard library functions from base, including all functions from Prelude, Data.List, Data.Maybe, and more Features not yet implemented, but coming soon: ...