c#结构
结构:一次性声明多个变量
struct Books { public string title; public string author; public string subject; public int book_id; }; public class StructTest { public static void Main(string[] args) { Books Book1; Books Book2; Book1.title = "c#从入门到放弃"; Book1.author = "hollis"; Book1.subject = "C# Programming Tutorial"; Book1.book_id = 12345; Book2.title = "c++从入门到放弃"; Book2.author = "hollis"; Book2.subject = "C++ Billing Tutorial"; Book2.book_id = 54321; }