主页 / 问题 / 1430784
Accepted
Anton Kuznetsov
Asked:2022-07-18 20:01:27 +0000 UTC2022-07-18 20:01:27 +0000 UTC

c#如何全局分配对象的类型？

  • 772

有4个对象

public object ObjectGet = { get; set; }
public Object1TType Object1 = new Object1TType();
public Object2TType Object2 = new Object2TType();
public object Object3Set = new();
...
if ... => ObjectGet = new Object1TType(...)
else => ObjectGet = new Object2TType(...)

我知道代码本身可以有一个 Object3Set ：

if (ObjectGet is Object1TType)
{
    Object3Set = ObjectGet as Object1TType;
}
else if (ObjectGet is Object2TType)
{
    Object3Set = ObjectGet as Object2TType;
}

但是如何根据全局对象的类型将对象 Object3Set的类型更改为Object1TType或Object2TType，以便我可以访问Object3Set.Field（假设我知道在这个地方它是 100% Object1TType ）而无需在本地创建一个 Object3Set？

工作代码示例： 1.cs

namespace ObjectType
{
    public class Object1TType : ICloneable
    {
        public ulong Field { get; set; }
        public Object1TType()
        {
        }

        public Object1TType( ulong Field)
        {
            this.Field = Field;
        }
        public object Clone()
        {
            return new Object1TType(Field);
        }
    }

    public class Object2TType : ICloneable
    {
        public ulong Field { get; set; }
        public Object2TType()
        {
        }

        public Object2TType(ulong Field)
        {
            this.Field = Field;
        }
        public object Clone()
        {
            return new Object2TType(Field);
        }
    }

    public class Class1
    {
        public static object ObjectGet = new Object1TType();

        public static void Do()
        {
            ulong test = 123;
                ObjectGet = new Object2TType(test);
        }
    }
}

2.cs

namespace Code
{
    public class Main
    {
        public object ObjectGet = ObjectType.Class1.ObjectGet;
        public object Object3Set = new();

        public void Do()
        {
            ObjectType.Class1.Do();
            if (ObjectGet is ObjectType.Object1TType)
            {
                Object3Set = ObjectGet as ObjectType.Object1TType;
            }
            else if (ObjectGet is ObjectType.Object2TType)
            {
                Object3Set = ObjectGet as ObjectType.Object2TType;
            }

            Console.WriteLine(Object3Set.Field);
        }
    }
}

在这里我无法访问ObjectGet.Field和Object3Set.Field，为此我认为我需要对Object3Set做一些事情并使用它

c# объекты

1 个回答

  1. Best Answer
    public interface IObjectTType
{
    UInt64 Field { get; set; }
}
public class Object1TType : ICloneable, IObjectTType
{
    public UInt64 Field { get; set; }
}
public class Object2TType : ICloneable, IObjectTType
{
    public ulong Field { get; set; }
}
public class Class1
{
    public static IObjectTType ObjectGet = new Object1TType();
}
public class Main
{
    public IObjectTType ObjectGet = ObjectType.Class1.ObjectGet;
    public object Object3Set = new();

    public void Do()
    {
          
        ObjectType.Class1.Do();
        Console.WriteLine(ObjectGet.Field);
    }
}

    您可以使用接口/抽象类/类继承来实现对象的通用功能。

    Object3Set- 没有以任何方式参与，她为什么...

    ps 命名空间ObjectType与类名匹配，Microsoft.VisualBasic.CompilerServices.ObjectType避免此类匹配，以免与IDE混淆。

    • 3

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