static void Main(string[] args)
{
show("-----------IEnumerator------------");
Phone[] phones = new Phone[] { new Phone("iPhone 7s"), new Phone("iPhone 6s"), new Phone("iPhone 5s") };
MyEnumerator enumerator = new MyEnumerator(phones);
while (enumerator.MoveNext())
{
Phone p = enumerator.Current as Phone;
show(p.Name);
}
show("-----------IEnumerable------------");
Phone phoneList = new Phone(phones);
foreach (Phone p in phoneList)
{
show(p.Name);
}
Console.ReadKey();
}
结果显示：
大功告成，再扩展成通用的容器PhonePackage，继承泛型IEnumerable<T>接口即可。
public class PhonePackage<T> : IEnumerable<T>
{
private List<T> dataList = null;
public void Add(T t)
{
if (dataList == null)
dataList = new List<T>();
dataList.Add(t);
}
public IEnumerator<T> GetEnumerator()
{
foreach (T t in dataList)
{
yield return t;
}
}
IEnumerator IEnumerable.GetEnumerator()
{
foreach (T t in dataList)
{
yield return t;
}
}
}
static void Main(string[] args)
{
show("-----------IEnumerator------------");
Phone[] phones = new Phone[] { new Phone("iPhone 7s"), new Phone("iPhone 6s"), new Phone("iPhone 5s") };
MyEnumerator enumerator = new MyEnumerator(phones);
while (enumerator.MoveNext())
{
Phone p = enumerator.Current as Phone;
show(p.Name);
}
show("-----------IEnumerable------------");
Phone phoneList = new Phone(phones);
foreach (Phone p in phoneList)
{
show(p.Name);
}
show("-----------IEnumerable<T>------------");
PhonePackage<Phone> phonePackage = new PhonePackage<Phone>();
phonePackage.Add(new Phone("iPhone 7s"));
phonePackage.Add(new Phone("iPhone 6s"));
phonePackage.Add(new Phone("iPhone 5s"));
foreach (Phone p in phonePackage)
{
show(p.Name);
}
Console.ReadKey();
}
static void show(string i)
{
Console.WriteLine(i);
}
结果显示：
IEnumerator迭代器接口挺啰嗦的，yield是简化了遍历的语法糖而已。
以上就是本文的全部内容，希望本文的内容对大家的学习或者工作能带来一定的帮助，同时也希望多多支持ASPKU！
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