C# is a modern, general-purpose, object-oriented programming language developed by Microsoft and approved by Ecma and ISO.

C# was developed by Anders Hejlsberg and his team during the development of the .Net framework.

C# is designed for the Common Language Infrastructure (CLI). The CLI consists of executable code and a runtime environment that allows the use of a variety of high-level languages ??on different computer platforms and architectures.

C# variables syntax

A variable is nothing more than the name of a storage area for the program to operate on. In C#, each variable has a specific type, and the type determines the memory size and layout of the variable. Values ??within the range can be stored in memory, and a range of operations can be performed on the variables.

C# variables example

namespace?VariableDefinition{
????class?Program
????{
????????static?void?Main(string[]?args)
????????{
????????????short?a;
????????????int?b?;
????????????double?c;
????????????/*?實(shí)際初始化?*/
????????????a?=?10;
????????????b?=?20;
????????????c?=?a?+?b;
????????????Console.WriteLine("a?=?{0},?b?=?{1},?c?=?{2}",?a,?b,?c);
????????????Console.ReadLine();
????????}
????}}