是否可以传递抽象类'；s对象作为类实例的参数

本文关键字：对象 实例 参数 抽象类 是否 | 更新日期: 2023-09-27 18:25:10

我想知道是否可以将抽象类的属性（或函数）值传递给实例类参数？或者，我必须创建一个私有成员变量，将数据分配给它，然后将其传递给实例类参数？这听起来很令人困惑，所以下面的例子将有助于更好地阐明这一点。

查看"DatabaseDataDealer"类中的"new DealerAccountRepository（MyEnvironmentSetting）；"部分。

public abstract class AEnvironmentSetting
{
    //Constructor...
    protected AEnvironmentSetting(EnvironmentSetting parmEnvironmentSetting)
    {
        _environmentSetting = new EnvironmentSetting
        {
            Emulation = parmEnvironmentSetting.Emulation, 
            Database = parmEnvironmentSetting.Database
        };
    }
    //Member variables...
    private EnvironmentSetting _environmentSetting = null;
    //Get/Set properties...
    protected string MyEmulation { get { return _environmentSetting.Emulation; } }  //No need for "set {}" property...
    protected string MyDatabase { get { return _environmentSetting.Database; } }  //No need for "set {}" property...
    //Functions...
    protected EnvironmentSetting MyEnvironmentSetting()
    {
        return _environmentSetting;
    }
}
public class DealerAccountRepository : AEnvironmentSetting
{
    //Constructor...
    public DealerAccountRepository(EnvironmentSetting parmEnvironmentSetting) : base(parmEnvironmentSetting)
    {
    }
    //Functions...
    public string Foo_Emulation()
    {
        return MyEmulation;  //This object coming from the abstract class "AEnvironmentSetting"...
    }
    public string Foo_Database()
    {
        return MyDatabase;  //This object coming from the abstract class "AEnvironmentSetting"...
    }
    public EnvironmentSetting Foo_EnvironmentSetting()
    {
        return MyEnvironmentSetting();  //This object coming from the abstract class "AEnvironmentSetting"...
    }
}
public class DatabaseDataDealer : AEnvironmentSetting
{
    //Constructor...
    public DatabaseDataDealer(EnvironmentSetting parmEnvironmentSetting) : base(parmEnvironmentSetting)
    {
    }
    //Get/Set properties...
    public DealerAccountRepository DealerAccount { get { return new DealerAccountRepository(MyEnvironmentSetting); } }  //No need for "set {}" property...
    //Functions...
    //N/A...
}

是否可以传递抽象类'；s对象作为类实例的参数

如果您询问一个方法是否可以接受这样的抽象对象：

private void DoSomething(AEnvironmentSetting a)

是的，它可以，并且您可以使用抽象类中的每个属性和方法，包括调用抽象方法。然而，无论谁调用这个方法，都必须发送一个calss的实例，它继承了如下抽象类：

DatabaseDataDealer d = new DatabaseDataDealer ();
DoSomething(d);

如果将从DoSomething调用抽象方法，则DatabaseDataDealer的实现将被称为

在构造函数中，您可以调用基，然后您将获得抽象构造函数。最后，让我说，学习这一点的最好方法就是尝试。编译并运行您的代码，并设置一个断点来查看它是如何进行的以及经过了哪些步骤

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