Struct program

program.cs

struct Books 
{
   public string title;
   public string author;
   public string subject;
   public int book_id;
};
Books test;
test.title = "Struct Sample";
test.author = "Tae Chanwit"; 
test.subject = "Structure in dotnet5 C#";
test.book_id = 8211;

Console.WriteLine( "title :", test.title);
Console.WriteLine("author :", test.author);
Console.WriteLine("subject :", test.subject);
Console.WriteLine("book_id :", test.book_id);