为什么只读结构中的属性不能写，而类却可以? [英] Why property in read only structure can't be write while class can ?

问题描述

我很好奇为什么不能在设置只读类的同时设置只读结构的属性?

I'm curious why can't property in read only struc be set while read only class can be set ?

    public struct A {
        int C;
        public int X { get { return C; } set { C = value; } }
    }
    public class B
    {
        int C;
        public int X { get { return C; } set { C = value; } }
    }

    public static class C{

        public static readonly A Ax = new A();
        public static readonly B Bx = new B();

        public static void Main() { 
            Ax.X = 10; //Got error here.
            Bx.X = 10;
        }
    }

推荐答案

即使更改值类型的状态，也会更改对象标识.

Even when you change the state of a value type, you change the object identity.

请确保您要使用值类型-它们以非常不直观的方式工作.

Be very sure you want a value type - they work in a very non-intuitive way.

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