如何设置和获得私有成员的遗产价值 [英] how to set and get value of privae members of inheritence

问题描述

当成员f类声明为私有时，set和get属性如何工作????

给我一个简单的例子，可以很容易理解... thnx

when members f class declared as private then how the set and get property works????
give me ans with simple examples that could understand easily... thnx

推荐答案

当您将它们声明为私有时，只能从该类中访问它们，而不能从其中进行访问：

When you declare them as private, they can only be accessed from within that class, and no other:

public class MyBase
    {
    private string MyProp { get; set; }
    public void Method(string s) { MyProp = s; }
    public string OtherMethod() { return MyProp; }
    }
public class MyDerived : MyBase
    {
    public void SetIt()
        {
        MyProp = "hello";  // **** ERROR ****
        Method("Hello");   // OK
        }
    }

即使你从MyBase派生出一个新类，新类无法访问私有成员。为此，您可以将其声明为受保护：

Even if you derive a new class from MyBase, the new class cannot access the private members. To allow that, you can declare it as protected:

{
    protected string MyProp { get; set; }
    public void Method(string s) { MyProp = s; }
    public string OtherMethod() { return MyProp; }
    }
public class MyDerived : MyBase
    {
    public void SetIt()
        {
        MyProp = "hello";   // OK
        Method("Hello");    // OK
        }
    }

类中声明的任何内容都可以在该类中的任何位置使用，无论保护级别如何，但您可以使用私有，受保护和内部说明符限制对类外的访问。

Anything declared within a class is available anywhere within that class regardless of the protection level, but you can restrict access to it outside the class, using the private, protected and internal specifiers.

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