多个数据类型的列表? [英] A list of multiple data types?

问题描述

我有两个类:

public class MachineLine
{
    public double X1;
    public double Y1;
    public double X2;
    public double Y2;
    public double Thickness;
}

public class MachineCircle
{
    public double CenterX;
    public double CenterY;
    public double Radius;
}

我想制作一个可以容纳这两种类型的列表，但我不希望我的列表能够容纳任何其他数据类型.这怎么办?

I want to make a List which can hold both of these, but I don't want my list to be able to hold any other data type. How can this be done?

推荐答案

最简单的方法是声明一个接口，并让两种类型都实现它:

The easiest way to do this is to declare an interface, and have both types implement it:

public interface IMachine { … }

public class MachineLine : IMachine
{
    public double X1;
    public double Y1;
    public double X2;
    public double Y2;
    public double Thickness;
}

public class MachineCircle : IMachine
{
    public double CenterX;
    public double CenterY;
    public double Radius;
}

然后你可以这样做:

List<IMachine> m = new List<IMachine>();

这篇关于多个数据类型的列表?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！