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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace ConsoleApplication2
{
class Program
{
static void Main(string[] args)
{
person p = new person();
p.age = 13;
setage(p);
Console.WriteLine(p.age);//p.age=12;
Console.Read();
}
static void setage(person p)
{
p.age = 12;
p = new person();
p.age = 15;
}
class person { public int age;}
}
}