public void CollectionTest()
{
//Collection<T>类是一个可定制的List<T>包装类, 实现了IList<T>和IList
//Collection<T>提供了类似钩子的四个虚方法(ClearItem、InsertItem、RemoveItem、SetItem)
var zoo = new Zoo1();
zoo.Animals.Add(new Animal1("Bird", 1));
zoo.Animals[0] = new Animal1("Dog", 2);
zoo.Animals.RemoveAt(0);
zoo.Animals.Clear();
}
public AnimalCollection1(Zoo1 zoo)
{
this.zoo = zoo;
}
