static void Main(string[] args)
{
Classes <Student> classes = new Classes <Student>();
Student student1 = new Student("张三");
Student student2 = new Student("李四");
Student student3 = new Student("王五");
System.Collections.Generic.IEnumerator <Student> iterator = (classes as System.Collections.Generic.IEnumerable <Student>).GetEnumerator();
classes.AddStudent(student1);
classes.AddStudent(student2);
classes.AddStudent(student3);
while (iterator.MoveNext())
{
Student student = iterator.Current;
Console.WriteLine(student);
}
Console.WriteLine("Hello World!");
}
