ASP.NET教程:抽象类和接口的比较

public class TestCls: IComparable
{
    public TestCls()
    {
    }

    private int _value;
    public int Value
    {
        get { return _value; }
        set { _value = value; }
    } iT粉丝网

    public int CompareTo(object o)
    { Webjx.Com

        //使用as模式进行转型判断
        TestCls aCls = o as TestCls;
        if (aCls != null)
        {

        //实现抽象方法
        return _value.CompareTo(aCls._value);
        }
    }
}

    //定义属性
    public abstract static int Id
    {
        get;
        set;
    }

    //定义方法
    public abstract void Eat(); iT粉丝网

    //定义索引器
    public string this[int i]
    {
        get;
        set;
    }
}

iT粉丝网

/// <summary>
/// 实现抽象类
/// </summary>
public class Dog: Animal
{
    public static override int Id
    {
        get {return _id;}
        set {_id = value;}
    }

    public override void Eat()
    {
        Console.Write("Dog Eats.")
    }
} Webjx.Com