C#定义结构

using System;

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;   /* Declare Book1 of type Book */
      Books Book2;   /* Declare Book2 of type Book */

      /* book 1 specification */
      Book1.Title = "C Programming";
      Book1.author = "Nuha Ali"; 
      Book1.subject = "C Programming Tutorial";
      Book1.book_ID = 6495407;

      /* book 2 specification */
      Book2.Title = "Telecom Billing";
      Book2.author = "Zara Ali";
      Book2.subject =  "Telecom Billing Tutorial";
      Book2.book_ID = 6495700;

      /* print Book1 info */
      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);

      /* print Book2 info */
      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();
   }
}