什么是“静态"的?班级? [英] What is a "static" class?

问题描述

在C#中，有什么区别:

In C# what is the difference between:

public static class ClassName {}

并且:

public class ClassName {}

推荐答案

静态类无法实例化，并且只能包含静态成员.因此，对静态类的调用为:MyStaticClass.MyMethod(...)或MyStaticClass.MyConstant.

A static class cannot be instantiated, and can contain only static members. Hence, the calls for a static class are as: MyStaticClass.MyMethod(...) or MyStaticClass.MyConstant.

可以实例化一个非静态类，并且可以包含非静态成员(实例构造函数，析构函数，索引器).非静态类的非静态成员只能通过对象调用:

A non static class can be instantiated and may contain non-static members (instance constructors, destructor, indexers). A non-static member of a non-static class is callable only through an object:

MyNonStaticClass x = new MyNonStaticClass(...);
x.MyNonStaticMethod(...);

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