Reading a book about C# i noticed that sometimes is mentioned value type and sometimes primitive type for some data type (e.g. int, double) . I thought they were the same thing, but they are really the same or not ?
读一本关于C#的书我注意到有时会提到一些数据类型的值类型和有时是原始类型(例如int,double)。我以为它们是同一个东西,但它们真的相同或不相同?
What is the difference between a value type and a primitive type ? Are they the same thing ?
值类型和基本类型有什么区别?它们是一样的吗 ?
EDIT
The question is not only related to C# programming Language, i was wondering how them are different even in any other Language ...
问题不仅与C#编程语言有关,我还想知道它们在任何其他语言中是如何不同的......
3 个解决方案
#1
5
A value type is usually whatever type reside on the Stack .
值类型通常是堆栈上驻留的任何类型。
A primitive type is a type defined at the programming language level, often it is even a value type, directly supported by the compiler of the language.
基本类型是在编程语言级别定义的类型,通常它甚至是值类型,由语言的编译器直接支持。
However this is a summary general answer because each programming language have different set of differences between the two types ...
然而,这是一个总结性答案,因为每种编程语言在两种类型之间有不同的差异集......
#2
4
A primitive type (e.g. int) can be mapped directly to a Base Class Library (BCL) type (e.g. System.Int32)
原始类型(例如int)可以直接映射到基类库(BCL)类型(例如System.Int32)
A value type inherits from System.ValueType and is passed by value (among other properties).
值类型继承自System.ValueType,并通过值(以及其他属性)传递。
They are not interchangeable as object (System.Object) is a primitive type but not a value type, and structs are value types but not primitive.
它们不可互换,因为对象(System.Object)是基本类型而不是值类型,结构是值类型但不是原始类型。
See more differences here
在这里查看更多差异
#3
0
No they are not. A value type is copied and while a reference type is being referenced. See the image
不,他们不是。复制值类型,同时引用引用类型。看图像
Edit My mistake. Here's an tutorial for the differences: http://www.codeproject.com/Articles/11212/Primitive-Reference-and-Value-Types
编辑我的错误。以下是差异教程:http://www.codeproject.com/Articles/11212/Primitive-Reference-and-Value-Types
#1
5
A value type is usually whatever type reside on the Stack .
值类型通常是堆栈上驻留的任何类型。
A primitive type is a type defined at the programming language level, often it is even a value type, directly supported by the compiler of the language.
基本类型是在编程语言级别定义的类型,通常它甚至是值类型,由语言的编译器直接支持。
However this is a summary general answer because each programming language have different set of differences between the two types ...
然而,这是一个总结性答案,因为每种编程语言在两种类型之间有不同的差异集......
#2
4
A primitive type (e.g. int) can be mapped directly to a Base Class Library (BCL) type (e.g. System.Int32)
原始类型(例如int)可以直接映射到基类库(BCL)类型(例如System.Int32)
A value type inherits from System.ValueType and is passed by value (among other properties).
值类型继承自System.ValueType,并通过值(以及其他属性)传递。
They are not interchangeable as object (System.Object) is a primitive type but not a value type, and structs are value types but not primitive.
它们不可互换,因为对象(System.Object)是基本类型而不是值类型,结构是值类型但不是原始类型。
See more differences here
在这里查看更多差异
#3
0
No they are not. A value type is copied and while a reference type is being referenced. See the image
不,他们不是。复制值类型,同时引用引用类型。看图像
Edit My mistake. Here's an tutorial for the differences: http://www.codeproject.com/Articles/11212/Primitive-Reference-and-Value-Types
编辑我的错误。以下是差异教程:http://www.codeproject.com/Articles/11212/Primitive-Reference-and-Value-Types