How to use the C# index

Editor to share with you how to use the C# index, I believe most people do not know much about it, so share this article for your reference, I hope you can learn a lot after reading this article, let's learn about it!

Here is the posted code:

Using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace index {class Worker {public string LastName; public string FirstName; public string MyBirth Public string this [int index] {set {switch (index) {case 0: LastName = value Break; case 1: FirstName = value; break; case 2: MyBirth = value Break; default: throw new ArgumentOutOfRangeException ("index"); break }} get {switch (index) {case 0: return LastName Case 1: return FirstName; case 2: return MyBirth; default: throw new ArgumentOutOfRangeException ("index") Break }} class Program {static void Main (string [] args) { Worker a = new Worker () Console.WriteLine ("print the value: {0}, {1}, {2}", a [0], a [1], a [2]); Console.WriteLine ("please print your last name"); a [0] = Console.ReadLine (); Console.WriteLine ("please print your first name") A [1] = Console.ReadLine (); Console.WriteLine ("please print your birthday"); a [2] = Console.ReadLine (); Console.WriteLine ("Now,your name is {0}, {1}, and your birth is {2}", a [0], a [1], a [2]) }}}

First of all, what is a C# index?

It is said in the book that it is a set of get and set accessors, which I personally think directly is the concept of getting or setting values. It may be wrong, hehe, the theory is too bad, I just read it.

How to declare a C# index?

His grammar is as follows:

Note the following: a: the index does not have a name, it is through the keyword this.

B: the parameter list is in square brackets.

C: the parameter list must declare at least one parameter.

ReturnType this [type param1,...] {get {...} set {...}} these are all the contents of the article "how to use the C # Index" Thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!