下列程序的运行结果是【中国地质大学 】。 public class University { const int MAX = 10; private string[] name = new string[MAX]; public string this[ int index ] { get { if ____ return name[index]; else return name[0]; } set { if ____ name[index] = value; } } } class Program { static void Main____ { University un=new University____; un[0] = "清华大学"; un[1] = "北京大学"; un[2] = "中国地质大学"; Console.WriteLine____; } }