请解释C＃属性是如何工作的？ [英] Please explain how C# properties work?

问题描述

我一直在学习C＃有一段时间了，我已经在我的C＃的书（深入浅出C＃）遇到的属性。老实说，我不明白他们在用什么，我为什么要使用它们。我GOOGLE了他们几次，但仍然不能为我的生活了解它们。

I've been learning C# for a while now, and I've come across properties in my C# book (Head First C#). I honestly do not understand what they're used for, and why I should use them. I've googled them a few times but still cannot for the life of me understand them.

可有人请给我解释一下这个陌生的概念？

Can someone please explain to me this foreign concept?

谢谢，

Va​​rmitharen

Varmitharen

推荐答案

属性是用来充实面向对象编程的封装概念。

Properties are used to enrich the Encapsulation concept of Object-Oriented Programming.

即它们封装字段名成员，让你（开发人员）控制如何设置/获取这个变量就完成了。 ？例如：

i.e. They encapsulate a field-member and let you (the developer) control how setting/getting this variable is done. Example?

public class Person
{
    private int m_age;

    public int Age
    {
        set
        {
            if(value < 18)
                m_age = 18;
            else
                m_age = value;
        }
        get
        {
            return m_age;
        }
    }
}

看到了吗？使用属性年龄，我们保证的年龄最小设定值是18。

See? using property Age, we guaranteed that the minimum set value of age is 18.

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