依赖注入模式 Dependency Injection Pattern (C#)

1. Constructor Injection

public class Boy
    {
        private IDog smallDog;

        public Boy(IDog smallDog)
        {
            this.smallDog = smallDog;
        }
    }

    public interface IDog
    {
        //method
    }

2. Setter Injection

public class Boy
    {
        private IDog smallDog;

        public IDog SmallDog
        {
            get { return smallDog; }
            set { smallDog = value; }
        }
    }

    public interface IDog
    {
        //method
    }

3. Interface Injection

public class Boy : IDogMgr

{

private IDog smallDog;

public void InjectDog(IDog smallDog)

{

this.smallDog = smallDog;

}

}

public interface IDog

{

//method

}

public interface IDogMgr

{

void InjectDog(IDog smallDog);

}