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第十七节 枚举 结构体

2013-04-30 22:50 323 查看
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);
}
}
}


  
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