Dissecting the First C# Program "HelloWorld"

//Tells the complier that this program uses types from the System namespace.
using System; 
//Declares a new namespace, called HelloWorld
//A namespace is a set of type declarations associated with a name. namespace HelloWorld { //Declares a new class type, called Program class Program { //Declares a method called Main as a member of class Program //Main is a special function used by the complier as the starting point of the program. static void Main(string[] args) { //Contains only a single, simple statement; this line constitutes the body of Main. //Simple statements are terminated by a semicolon. //This statement uses a class called Console, in namespace System, to print out the message to a window on the screen //Without the using statement in line 1, the compiler wouldn't have known where to look for class Console. Console.WriteLine("Hello World!"); } } }

 

 

posted @ 2014-01-14 11:17  木子酱要努力  阅读(101)  评论(0编辑  收藏  举报