这个可以将该限定去掉,只要实现IOperation接口即可。privatestatic<T extends Enum<T> & IOperation>voidtest(Class<T> tClass,doublex,doubley){for(IOperation operation : tClass.getEnumConstants()) {System.out.printf("%f %s %f = %f%n",x, op...
classTest(enum.Enum):A=1B=1C=2D=2print([名称for名称,枚举成员inTest.__members__.items()if枚举成员.name!=名称])# 输出结果为 ['B', 'D'] 也可以添加一个类装饰器@enum.unique,用来强制规定枚举成员的值也必须是唯一的。 importenum@enum.uniqueclassTest(enum.Enum):A=1B=1# ValueError: dupl...
Provides the base class for enumerations. C# Copy public abstract class Enum : ValueType, IComparable, IConvertible, ISpanFormattable Inheritance Object ValueType Enum Derived Accessibility.AnnoScope Microsoft.Aspnet.Snapin.MMC_CONTROL_TYPE Microsoft.CSharp.ErrorLevel Microsoft.CSharp.RuntimeBind...
Provides the base class for enumerations.C# Copy public abstract class Enum : ValueType, IComparable, IConvertible, ISpanFormattableInheritance Object ValueType Enum Derived Accessibility.AnnoScope Microsoft.Aspnet.Snapin.MMC_CONTROL_TYPE Microsoft.CSharp.ErrorLevel Microsoft.CSharp.RuntimeBinder....
public abstract class Enum : ValueType, IComparable, IConvertible, ISpanFormattable Ereditarietà Object ValueType Enum Derivato Accessibility.AnnoScope Microsoft.Aspnet.Snapin.MMC_CONTROL_TYPE Microsoft.CSharp.ErrorLevel Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags Microsoft.CSharp.Runti...
这个错误还不是代码的问题，而是文件编码的问题。楼主估计是用了一个非记事本的编辑器吧？这个文件因编码的问题，在java.util.*;这条语句的开头也就是i前面隐藏了一个字符，就像是\n回车这种字符，你是看不到的。解决办法就是新建一个文本文件，用记事本打开，把你的这些代码复制进去，重命名为cat....
publicclassMain{publicstaticvoidmain(String[]args){Singletoninstance=Singleton.INSTANCE;System.out.println(instance);}} 1. 2. 3. 4. 5. 6. 在上面的示例中,我们通过Singleton.INSTANCE获取了Singleton枚举类型的唯一实例,并打印出来。这种方式不仅简洁明了,而且保证了在程序中只有一个实例对象存在。
C++/CX e C++/CLI supportano public enum class e private enum class, che sono simili a enum class C++ standard, ma con l'aggiunta dell'identificatore di accessibilità. In /clr il tipo enum class C++11 è consentito, ma genera l'avviso C4472 che ha lo scopo di verificare se si ...
Support has been added for a Flag functionality. This feature is similar to the behaviour seen when applying the [Flag] attribute to Enums in the .NET Framework All methods available on the SmartFlagEnum class return an IEnumerable<SmartFlagEnum> with one or more values depending on the value...