difference between abstract class and interface in c#

In c++template many places have used the TypeName and class these two keywords, and seems to be able to replace, is not the two keywords exactly the same? believe that the people who learn C + + are very clear about the keyword class, class is used to define classes, introdu

Recently, I have been studying C + + template programming, although some difficulties, but hope to persist. Today, in the book to see a discussion template programming TypeName and class two keyword difference, think very meaningful, they summed up.Let's look at an example:TemplateC) { typedef typename C::value

C + + can be used in two ways when creating an object: (for example, a class named Test) test test or test* pTest = new Test ().Both methods can instantiate an object, but there is a big difference between the two methods, the difference is that the object content is in the same memory space, it is known that there are

0. A struct is a custom data type declared with a keyword struct. Similar to classes, you can also include constructors, constants, fields, methods, properties, indexers, operators, and nested types.1. The structure is created in the stack, is a value type, and the class is a reference type. Whenever you need a type that you use frequently, and most of the time the type is just some data, the use of structs can get better performance than using classe

C # The difference between hiding and overriding base class methodsusingSystem;usingSystem.Collections.Generic;usingSystem.Linq;usingSystem.Text;namespaceinterfaceinfo{ Public classAnimal { Public voidaction () {Console.WriteLine ("Eat sleep fuck"); } Public Virtual voidShow () {Console.WriteLine ("show ..."); } } Public classDog:animal { Public Ne

Initialization and assignment do not make much difference to members of built-in types, like any constructor.But sometimes you have to use a constructor with an initialization list :(1) The member type isclasses without a default constructor。 If no explicit initialization is provided, the compiler implicitly uses the default constructor of the member type, and if the class does not have a default construct

A class can define a member before its first access specifier, and access to such a member depends on how the class is defined. If we use the struct keyword, the members that are defined before the first access specifier are public, and conversely, if you use the Class keyword, those members are private.When we want to define a

First difference, the source of the original http://www.dotnetspider.com/resources/740-Difference-between-class-struct-C.aspx1. Class is a reference type that inherits from the system. Object Class. Structs is a value type that inherits from the system. valuetype

First difference, the source of the original http://www.dotnetspider.com/resources/740-Difference-between-class-struct-C.aspx1. Class is the reference type, and structs is the value type.Since the class is a reference type, the class