C#求和

namespace ConsoleApplication3
{
class Program
{
static void Main(string[] args)
{
//  Person2.SayHello();
Person2 p2 = new Person2();
int m= p2.AddParams(1, 2, 3, 4);
//Person2.age
Person3 p3 = new Person3();
// p3[0] = 0;
Console.WriteLine( p3[0] = 0);
Console.ReadKey();
}
}

class Person
{
private int height;
public int Height
{
get { return height; }
set { height = value; }
}
public int Age;
private string name;

public string Name
{
get { return name; }
set { name = value; }
}

public string ReturnName()
{
string aa;
aa = this.name;
return aa;

}

public void GiveName(string Namm)
{
this.name = Namm;
}

public void SayHello()
{
Console.WriteLine("大家好");
}

}
class Person2
{
/*成员变量字段，属性，索引，代理，事件，嵌套类，方法。*/
public static int age;
public void SayHello()
{
Console.WriteLine("dddd");
}

public int AddParams(params int[] number)
{
int sum = 0;
foreach (int item in number)
{
sum += item;
}
return sum;
}
}
public class Person3
{
private int age;
public int Age
{
get { return age; }
set { age = value; }
}
public int this[int a]
{
get { return age; }
set { age = value; }
}

}
}