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

namespace Demo
{

enum orientation:byte
{
    北 = 1,
    南 = 2,
    东 = 3,
    西 = 4
}

struct route
{
    public orientation direction;
    public double distance;
}
class Program
{
    static void Main(string[] args)
    {
        route myRoute;
        int myDirection = -1;
        double myDistance;
        Console.WriteLine("1)北\n 2)南\n 3)东\n 4)西\n");
        do
        {
            Console.WriteLine("选择一个方向:");
            myDirection = Convert.ToInt16(Console.ReadLine());
        } while (myDirection < 1 || myDirection > 4);

        Console.WriteLine("输入一个距离:");
        myDistance = Convert.ToDouble(Console.ReadLine());

        myRoute.direction = (orientation)myDirection;
        myRoute.distance =  myDistance;

        Console.WriteLine("方向是{0},距离是{1}!",myRoute.direction,myRoute.distance);

        Console.ReadKey();
    }
}

}
结构比枚举更复杂，可以保存多种类型的数据！

本文转自TBHacker博客园博客，原文链接：http://www.cnblogs.com/jiqing9006/p/6728565.html，如需转载请自行联系原作者