C# 如何获取Object[]数组里面的值

class Program
{
static void Main(string[] args)
{
object[] obj = new object[] { new student("张三", 12), new student("李四", 15) };
string name = ((student)obj[0]).name;
Console.WriteLine(name);
}
}
public class student
{
public string name;
public int age;
public student() { }
public student( string _name, int _age)
{
this.age = _age;
this.name = _name;

}
}