[C#教程] C# 结构体（Struct）

C# 结构体（Struct）

在 C# 中，结构体是值类型数据结构。它使得一个单一变量可以存储各种数据类型的相关数据。struct 关键字用于创建结构体。

结构体是用来代表一个记录。假设您想跟踪图书馆中书的动态。您可能想跟踪每本书的以下属性：

Title
Author
Subject
Book ID

定义结构体

为了定义一个结构体，您必须使用 struct 语句。struct 语句为程序定义了一个带有多个成员的新的数据类型。

实例

using System;
using System.Text;

struct Books
{
public string title;
public string author;
public string subject;
public int book_id;
};

public class testStructure
{
public static void Main(string[] args)
{

Books Book1; /* 声明 Book1，类型为 Books */
Books Book2; /* 声明 Book2，类型为 Books */

/* book 1 详述 */
Book1.title = "C Programming";
Book1.author = "Nuha Ali";
Book1.subject = "C Programming Tutorial";
Book1.book_id = 6495407;

/* book 2 详述 */
Book2.title = "Telecom Billing";
Book2.author = "Zara Ali";
Book2.subject = "Telecom Billing Tutorial";
Book2.book_id = 6495700;

/* 打印 Book1 信息 */
Console.WriteLine( "Book 1 title : {0}", Book1.title);
Console.WriteLine("Book 1 author : {0}", Book1.author);
Console.WriteLine("Book 1 subject : {0}", Book1.subject);
Console.WriteLine("Book 1 book_id :{0}", Book1.book_id);

/* 打印 Book2 信息 */
Console.WriteLine("Book 2 title : {0}", Book2.title);
Console.WriteLine("Book 2 author : {0}", Book2.author);
Console.WriteLine("Book 2 subject : {0}", Book2.subject);
Console.WriteLine("Book 2 book_id : {0}", Book2.book_id);

Console.ReadKey();

}
}

Book 1 title : C Programming Book 1 author : Nuha Ali Book 1 subject : C Programming Tutorial Book 1 book_id : 6495407 Book 2 title : Telecom Billing Book 2 author : Zara Ali Book 2 subject : Telecom Billing Tutorial Book 2 book_id : 6495700

C# 结构的特点

您已经用了一个简单的名为 Books 的结构。在 C# 中的结构与传统的 C 或 C++ 中的结构不同。C# 中的结构有以下特点：

类 vs 结构

实例

using System;
using System.Text;

struct Books
{
private string title;
private string author;
private string subject;
private int book_id;
public void setValues(string t, string a, string s, int id)
{
title = t;
author = a;
subject = s;
book_id =id;
}
public void display()
{
Console.WriteLine("Title : {0}", title);
Console.WriteLine("Author : {0}", author);
Console.WriteLine("Subject : {0}", subject);
Console.WriteLine("Book_id :{0}", book_id);
}

};

public class testStructure
{
public static void Main(string[] args)
{

Books Book1 = new Books(); /* 声明 Book1，类型为 Books */
Books Book2 = new Books(); /* 声明 Book2，类型为 Books */

/* book 1 详述 */
Book1.setValues("C Programming",
"Nuha Ali", "C Programming Tutorial",6495407);

/* book 2 详述 */
Book2.setValues("Telecom Billing",
"Zara Ali", "Telecom Billing Tutorial", 6495700);

/* 打印 Book1 信息 */
Book1.display();

/* 打印 Book2 信息 */
Book2.display();

Console.ReadKey();

}
}