enum class Enum:unsigned int{VAL1,VAL2}; 正如前面所说,强类型枚举能解决传统枚举不同枚举类下同枚举值名的问题,使用枚举类型的枚举名时,必须指明所属范围,比如:Enum::VAL1,而单独的VAL1则不再具有意义。 还有一点值得说明的是C++11中枚举类型的前置声明也是可行的,比如: enum class Enum; enum class Enum...
问<enumtype>和<enum class="">生成之间的差异EN<enum>生成的类是否没有保存在数据库中？并且只充当...
3. the underlying type of an enum cannot be specified, causing confusion,compatibility problems, and makes forward declaration impossible. The new enums are "enum class" because they combine aspects of traditional enumerations (names values) with aspects of classes (scoped members and absense of c...
publicclassEnumMethodDemo{enumColor{RED,GREEN,BLUE;}enumSize{BIG,MIDDLE,SMALL;}publicstaticvoidmain(Stringargs[]) {System.out.println("=== Print all Color ===");for(Colorc :Color.values()) {System.out.println(c +" ordinal: "+ c.ordinal()); }System.out.println("=== Print all Size...
publicstatic<TextendsEnum<T>>TvalueOf(Class<T>enumType,String name){Tresult=enumType.enumConstantDirectory().get(name);if(result!=null)returnresult;if(name==null)thrownewNullPointerException("Name is null");thrownewIllegalArgumentException("No enum constant "+enumType.getCanonicalName()+"."+...
void Enum_parser< Enum, Default_value >::init ( ) inline Constructor-like function. The Enum_parser<> class is designed for use as a field of restricted unions, so it can't have C++ constructors. ◆ is_set() template<typename Enum , Enum Default_value> bool Enum_parser< Enum,...
預設值表示 coclass 內定義的自訂或 dispinterface,用以代表預設可程式性介面。 defaultvtable將介面定義為控件的預設 vtable 介面。 event_receiver建立事件接收器。 event_source建立事件來源。 export導致數據結構放在 .idl 檔案中。 first_is指定要傳輸之第一個陣列專案的索引。
public final class AggregationTypeEnum extends ExpandableStringEnum<AggregationTypeEnum>the criteria time aggregation types.Field Summary 展開資料表 Modifier and TypeField and Description static final AggregationTypeEnum AVERAGE Static value Average for AggregationTypeEnum. static final AggregationTypeEnum...
using System; [Flags] public enum PetType { None = 0, Dog = 1, Cat = 2, Rodent = 4, Bird = 8, Reptile = 16, Other = 32 }; public class Example { public static void Main() { object value; // Call IsDefined with underlying integral value of member. value = 1; Console.Write...
Enum Class Reference Feedback Definition Namespace: System Assemblies: netstandard.dll, System.Runtime.dll Source: Enum.cs Provides the base class for enumerations. C#Copy publicabstractclassEnum:ValueType,IComparable,IConvertible,ISpanFormattable ...