"Node. JS Learning"--(2)--module

A file is a module

Exports public interface

Create Exports.js

Two common interfaces available externally: Set value, square

var i;exports.set = function (num) {//Set value         i=num;         Console.log ("Seti to" +i); Exports.square = function () {//squared and output         I=math.pow (i,2);         Console.log ("i^2=" +i);

Require Get External interface

Create Require.js

var square =require ("./exports");//Load Module Square.set (5); Square.square ();

Run effect

After learning the module, we encapsulate the service request as a module backup.

Encapsulating the Boot module

New Index.js

var server = require ("./server"); Server.start ();

New Server.js

var http = require ("http"); function start () {function onrequest (request, Response) {   Console.log ("request received.");   Response.writehead ($, {"Content-type": "Text/plain"});   Response.Write ("Hello world!");   Response.End ();  }  Http.createserver (ONrequest). Listen (8000); Console.log ("Server has started."); Exports.start = start;

Test effect

Reference http://www.cnblogs.com/joqk/p/3868044.html

"Node. JS Learning"--(2)--module