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C#结构体

结构体:相当于是我们自己定义的一种复杂的类型。
int... double float bool char string DateTime 数组类型
生活中大部份的对象都是复合型的对象。

如何定义结构体类型?
一般来说结构体的定义要放在class的外面或class的里面,尽量不放在Main的里面。
struct 自定义类型名
{
public 变量类型 变量名;
......;
......;
......;

}
例如:
struct YuanGong //自定义的数据类型。用来描述员工的信息。
{
public string NO;
public string Name;
public int Age;
public string Nation;
public bool Sex;
}

如何用自定义的类型来定义变量?
自定义类型名 变量 = new 自定义类型名();

如何使用自定义类型的变量?
变量.子变量 = "xxxx";
Console.WriteLine(变量名.子变量);
例如:
//定义自定义类型的变量
YuanGong zhangsan = new YuanGong();
//给变量赋值
zhangsan.NO = "Y001";
zhangsan.Name = "张三";
zhangsan.Age = 22;
zhangsan.Sex = true;
zhangsan.Nation = "汉族";
//对变量取值
Console.WriteLine(zhangsan.NO+"\t"+zhangsan.Name+"\t"+zhangsan.Age);
Console.WriteLine(zhangsan.Nation+"\t"+(zhangsan.Sex?"男":"女"));

练习:

1.

 1 using System; 2 using System.Collections.Generic; 3 using System.Linq; 4 using System.Text; 5  6 namespace ConsoleApplication1 7 { 8     struct YuanGong  //自定义数据类型,用来描述员工的信息。 9     {10         public string NO;11         public string Name;12         public int Age;13         public string Nation;14         public bool sex;15     }16 17     class Program18     {19         static void Main(string[] args)20         {21             //定义自定义类型的变量22             YuanGong zhangsan = new YuanGong();23             //给变量赋值24             zhangsan.NO = "Y001";25             zhangsan.Name = "张三";26             zhangsan.Age = 22;27             zhangsan.sex = true;28             zhangsan.Nation = "汉族";29 30             YuanGong lisi = new YuanGong();31             lisi.NO = "Y002";32             lisi.Name = "李四";33             lisi.Age = 25;34             lisi.sex = false;35             lisi.Nation = "回族";36 37             //给变量取值38             Console.WriteLine("********张三的个人信息********");39             Console.WriteLine(zhangsan.NO+"\t"+zhangsan.Name+"\t"+zhangsan.Nation);40             Console.WriteLine(zhangsan.Age+"\t"+(zhangsan.sex?"":""));41         }42     }43 }

 

2.

 1 using System; 2 using System.Collections.Generic; 3 using System.Linq; 4 using System.Text; 5  6 namespace ConsoleApplication1 7 { 8     struct XueSheng 9     {10         public int xuehao;11         public string xingming;12         public double yuwen;13         public double shuxue;14         public double waiyu;15         public double zongfen;16         public int mingci;17     }18     class Class119     {20 21         static void Main(string[] args)22         {23             XueSheng[] a = new XueSheng[5];24             //输入25             for (int i = 0; i < a.Length;i++ )26             {27                 Console.WriteLine("正在输入第"+(i+1)+"个学生的信息");28                 a[i].xuehao = i + 1;29                 Console.Write("姓名:");30                 a[i].xingming = Console.ReadLine();31                 Console.Write("语文:");32                 a[i].yuwen = Convert.ToDouble(Console.ReadLine());33                 Console.Write("数文:");34                 a[i].shuxue = Convert.ToDouble(Console.ReadLine());35                 Console.Write("外语:");36                 a[i].waiyu = Convert.ToDouble(Console.ReadLine());37                 38                 a[i].zongfen = a[i].yuwen + a[i].shuxue + a[i].waiyu;39                 Console.WriteLine("总分:"+a[i].zongfen);40             }41             //排序42             for (int i = 1; i <= a.Length - 1;i++ )43             {44                 for (int j = 1; j <= a.Length - i; j++)45                 {46                     if (a[j].zongfen > a[j - 1].zongfen)47                     {48                         XueSheng temp = a[j];49                         a[j] = a[j - 1];50                         a[j - 1] = temp;51                     }52                 }53             }54             //写名次55             for(int i=0;i<a.Length;i++)56             {57                 a[i].mingci = i + 1;58             }59             //输出60             for (int i = 0; i < a.Length; i++)61             {62                 Console.WriteLine(a[i].xuehao+"\t"+a[i].xingming+"\t"+a[i].yuwen+"\t"+a[i].shuxue+"\t"+a[i].waiyu+"\t"+a[i].zongfen+"\t"+a[i].mingci);63             }64         }65 66     }67 }

 

C#结构体