14.3.1 Base types

原创于 2005-12-11 23:52:00 发布 · 1k 阅读

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博客围绕成员查找目的，阐述不同类型 T 的基础类型。如 object 无基础类型；枚举类型基础类型有 System.Enum、System.ValueType 和 object 等，涵盖枚举、结构体、类、接口、数组、委托等类型。

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For purposes of member lookup, a type T is considered to have the following
base types:
?If T is object, then T has no base type.
?If T is an enum-type, the base types of T are the class types
System.Enum, System.ValueType, and
object.
?If T is a struct-type, the base types of T are the class types
System.ValueType and object.
?If T is a class-type, the base types of T are the base classes of T,
including the class type object.
?If T is an interface-type, the base types of T are the base interfaces of
T and the class type object.
?If T is an array-type, the base types of T are the class types
System.Array and object.
?If T is a delegate-type, the base types of T are the class types
System.Delegate and object.