输入某人出生日期（以字符串方式输入，如1987-4-1）使用DateTime和TimeSpan类，（1)计算其人的年龄；（2）计算从现在到其60周岁期间，总共多少天。

http://blog.csdn.net/w92a01n19g/article/details/8764116

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace ConsoleApplication5
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine("请输入出生年份");
            string n = Console.ReadLine();
            int n1;
            int.TryParse(n, out n1);
            Console.WriteLine("请输入出生yue份");
            string y = Console.ReadLine();
            int y1;
            int.TryParse(y, out y1);
            Console.WriteLine("请输入出生日子");
            string r = Console.ReadLine();
            int r1;
            int.TryParse(r, out r1);
            DateTime dt = new DateTime(n1,y1,r1);
            Console.WriteLine(dt.ToShortDateString ());
            int nl = DateTime.Now.Year - n1;
            Console.WriteLine("他的年龄是{0}",nl);
            DateTime dt1 = new DateTime(n1+60, y1, r1);
            TimeSpan ts = dt1 - DateTime.Now;
            Console.WriteLine("从现在到其60周岁期间，总共{0}天",ts.Days.ToString ());
        }
    }
}