public void demo8()
{
Animal[] animals = new Animal[3];
animals[0] = new Cat();
animals[1] = new Bird();
animals[2] = new Dog();
foreach (Animal animal in animals)
{
ILiveBirth live = animal as ILiveBirth;
if (null != live)
{
Console.WriteLine("Baby is called: {0}", live.BabyCalled());
}
}
}
static void Main()
{
Animal[] animalArray = new Animal[3];
animalArray[0] = new Cat();
animalArray[1] = new Bird();
animalArray[2] = new Dog();
foreach (Animal a in animalArray)
{
ILiveBirth b = a as ILiveBirth;
if (b != null)
{
Console.WriteLine("Baby is called: {0}", b.BabyCalled());
}
}
}
static void Main()
{
Animal[] animalArray = new Animal[3]; // Create Animal array
animalArray[0] = new Cat(); // Insert Cat class object
animalArray[1] = new Bird(); // Insert Bird class object
animalArray[2] = new Dog(); // Insert Dog class object
foreach (Animal a in animalArray) // Cycle through array
{
ILiveBirth b = a as ILiveBirth; // if implements ILiveBirth...
if (b != null)
{
Console.WriteLine("Baby is called: {0}", b.BabyCalled());
}
}
}
static void Main(string[] args)
{
List <Animal> animals = new List <Animal> {
new Cat(),
new Bird(),
new Dog()
}; //将各个动物类添加到泛型集合中
foreach (Animal item in animals) //遍历
{
ILiveBirth liveBirth = item as ILiveBirth; //转接口引用
if (liveBirth != null) //若实现接口
{
Console.WriteLine("this is {0}", liveBirth.BabyCalled()); //执行实现方法
}
}
Console.ReadKey();
}
/// <summary>
/// 示例：实现接口，同时对于as关键字的使用
/// </summary>
/// <param name="args"></param>
static void Main(string[] args)
{
//数组创建时，需要留意
Animal[] animalArray = new Animal[3];
//使用多态
animalArray[0] = new Cat();
animalArray[1] = new Bird();
animalArray[2] = new Dog();
foreach (Animal a in animalArray)
{
//判断是否实现ILiveBirth接口
ILiveBirth b = a as ILiveBirth;//此处作为关键点
if (b != null)
{
Console.WriteLine("name is " + b.BabyCalled());
}
}
Console.ReadKey();
}