第十七节 枚举 结构体

枚举类型用关键字 enum声明。

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

namespace Meiju
{
    enum WeekDay{Sun,Mon,Tue,Wed,Thur,Fri,Sat}
    class Program
    {
        static void Main(string[] args)
        {
            WeekDay today = WeekDay.Sun;
            if ((today == WeekDay.Sun || (today == WeekDay.Mon)))
                Console.WriteLine("今天休息");
            else
                Console.WriteLine("今天上班");
        }
    }
}

　　

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

namespace Meiju
{
    enum WeekDay{Sun,Mon,Tue,Wed,Thur,Fri,Sat}
    class Program
    {
        static void Main(string[] args)
        {
            WeekDay today = (WeekDay)3;
            Console.WriteLine(today);
        }
    }
}

　　

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

namespace Meiju
{
    enum WeekDay{Sun,Mon,Tue,Wed,Thur,Fri,Sat}
    class Program
    {
        static void Main(string[] args)
        {
            WeekDay today = WeekDay.Mon;
            Console.WriteLine((int)(today));
        }
    }
}

　　

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

namespace Meiju
{
    enum WeekDay
    {
        Sun,
        Mon,
        Tue,
        Wed,
        Thur,
        Fri,
        Sat
    }
    class Program
    {
        static void Main(string[] args)
        {
            WeekDay today = WeekDay.Mon;
            for (today = WeekDay.Sun; today <= WeekDay.Sat; today++)
                Console.WriteLine(today);
        }
    }
}

　　

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

namespace Meiju
{
    enum WeekDay
    {
        Sun=100,
        Mon,
        Tue,
        Wed,
        Thur,
        Fri,
        Sat
    }
    class Program
    {
        static void Main(string[] args)
        {
            WeekDay today = WeekDay.Mon;
            Console.WriteLine( (int)(today));
        }
    }
}

　　结构体 用关键词strut

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

namespace Jiegouti
{
    struct  students
    {
        public int number;
        public string name;
        public string sex;
        public string birthday;
    }
    class Program
    {
        static void Main(string[] args)
        {
            students dh;
            dh.number = 1007;
            dh.name = "大海";
            dh.sex = "男";
            dh.birthday = "2013.4.30";
            students ylqf;
            ylqf.number = 1004;
            ylqf.name = "海风";
            ylqf.sex = "女";
            ylqf.birthday = "2013.5.1";
            Console.WriteLine("学号"+dh.number);
            Console.WriteLine("姓名" + dh.name);
            Console.WriteLine("性别" + dh.sex);
            Console.WriteLine("生日" + dh.birthday);

            Console.WriteLine("学号" + ylqf.number);
            Console.WriteLine("姓名" + ylqf.name);
            Console.WriteLine("性别" + ylqf.sex);
            Console.WriteLine("生日" + ylqf.birthday);
        }
    }
}