C # variables

Use of variables

A variable is a name that represents the data stored in memory when the program executes, and is used for program Access data.

Variable declaration

Before you can use a variable, you must declare it: give the variable a name and associate a type, and let the compiler allocate a chunk of memory for it. (A long piece of crap)

  string name; // A variable is declared, the name is named, and the type is string

You can also put multiple variable declarations in a single statement, but must be of the same type, with a comma interval between them.

　　

Types of variables

Local variables save temporary data at method scope

field holds data related to type or type instance, is a member of type

parameter is used for one method to pass data to another method temporary variable

A member of an ordered set of data of the same type of an array element

Variables that can be initialized automatically

1     class Program2     {3         Static intNumber//class field4         Static voidMain (string[] args)5         {6 Console.WriteLine (number);7             byte[] Arrs =New byte[4];8Console.WriteLine (arrs[1]);//array elements9Anystruct any=Newanystruct ();TenConsole.WriteLine (Any.field);//structure Field One         }   A     } -  -     structanystruct { the         Public Doublefield; -}

C # variables