In his book Pro C# 2008 and the .NET 3.5 Platform, Andrew Toelsen says, "In the world of .NET, type is simply a general term used to refer to a member from the set {class, interface, structure, enumeration, delegate}.
在他的书Pro C＃2008和.NET 3.5平台中，Andrew Toelsen说，“在.NET世界中，类型只是一个通用术语，用于指代集合中的成员{class，interface，structure，enumeration，delegate }。
What do these all have in common that they would be classed together as types? What would be a formal definition of type that would cover all of these under one umbrella term like that???
这些都有什么共同点，他们将被归类为类型？什么是正式的类型定义，涵盖所有这些类似的伞形术语？
3 个解决方案
#1
3
A type is anything that can describe a variable. For insstance, I can have a variable 'a' of type 'int' (int is a struct). I can also have 'b' of type 'MyClass' (MyClass is a class).
类型是可以描述变量的任何东西。对于insstance，我可以有一个'int'类型的变量'a'（int是一个struct）。我也可以使用'MyClass'类型的'b'（MyClass是一个类）。
Basically, all type are used (more or less) in this way (to declare a variable):
基本上，所有类型都以这种方式使用（或多或少）（声明变量）：
TypeName variableName;
The newly declared variable automatically has some sort of internal structure, for example, if it is of a class type, it can have methods and properties. If is of a delegate type, then it is designed to hold a reference to a method.
新声明的变量自动具有某种内部结构，例如，如果它是类类型，则它可以具有方法和属性。如果是委托类型，则它旨在保存对方法的引用。
Basically, a type is anything that you use to declare a variable. A type gives the variable its meaning, as well as restricts the variable to being used in a way which is suited to its existence.
基本上，类型是用于声明变量的任何类型。类型赋予变量其含义，并限制变量以适合其存在的方式使用。
#2
2
Short answer: you can declare variables of these - a type defines the "kind of" or "structure" of a variable.
简短回答：您可以声明这些变量 - 类型定义变量的“种类”或“结构”。
Technically, when you declare a variable of a certain type (for example, a class, an integral type etc.), you can only assign values of this specific type (or a compatible one, or one where an implicit type conversion exists) to the variable. In a strongly typed language like C#, in most cases the compiler will tell you if you break that rule.
从技术上讲，当您声明某个类型的变量（例如，类，整数类型等）时，您只能分配此特定类型的值（或兼容的或存在隐式类型转换的值）变量。在像C＃这样的强类型语言中，在大多数情况下，编译器会告诉您是否违反了该规则。
#3
0
They're all types because they represent all the possible types of a variable. Simple! :)
它们都是类型，因为它们代表变量的所有可能类型。简单！ :)
#1
3
A type is anything that can describe a variable. For insstance, I can have a variable 'a' of type 'int' (int is a struct). I can also have 'b' of type 'MyClass' (MyClass is a class).
类型是可以描述变量的任何东西。对于insstance，我可以有一个'int'类型的变量'a'（int是一个struct）。我也可以使用'MyClass'类型的'b'（MyClass是一个类）。
Basically, all type are used (more or less) in this way (to declare a variable):
基本上，所有类型都以这种方式使用（或多或少）（声明变量）：
TypeName variableName;
The newly declared variable automatically has some sort of internal structure, for example, if it is of a class type, it can have methods and properties. If is of a delegate type, then it is designed to hold a reference to a method.
新声明的变量自动具有某种内部结构，例如，如果它是类类型，则它可以具有方法和属性。如果是委托类型，则它旨在保存对方法的引用。
Basically, a type is anything that you use to declare a variable. A type gives the variable its meaning, as well as restricts the variable to being used in a way which is suited to its existence.
基本上，类型是用于声明变量的任何类型。类型赋予变量其含义，并限制变量以适合其存在的方式使用。
#2
2
Short answer: you can declare variables of these - a type defines the "kind of" or "structure" of a variable.
简短回答：您可以声明这些变量 - 类型定义变量的“种类”或“结构”。
Technically, when you declare a variable of a certain type (for example, a class, an integral type etc.), you can only assign values of this specific type (or a compatible one, or one where an implicit type conversion exists) to the variable. In a strongly typed language like C#, in most cases the compiler will tell you if you break that rule.
从技术上讲，当您声明某个类型的变量（例如，类，整数类型等）时，您只能分配此特定类型的值（或兼容的或存在隐式类型转换的值）变量。在像C＃这样的强类型语言中，在大多数情况下，编译器会告诉您是否违反了该规则。
#3
0
They're all types because they represent all the possible types of a variable. Simple! :)
它们都是类型，因为它们代表变量的所有可能类型。简单！ :)