初始化项目
新建一个文件夹，运行 npm init 初始化项目
mkdir okadaGo
cd okadaGo
npm init
按照提示输入一些项目的相关信息
D:\web\node>mkdir okadaGo D:\web\node>cd okadaGo D:\web\node\okadaGo>npm init This utility will walk you through creating a package.json file. It only covers the most common items, and tries to guess sensible defaults See `npm help json` for definitive documentation on these fields and exactly what they do. Use `npm install <pkg> --save` afterwards to install a package and save it as a dependency in the package.json file. Press ^C at any time to quit. name: (okadaGo) Sorry, name can no longer contain capital letters. name: (okadaGo) okada_go version: (1.0.0) description: entry point: (index.js) test command: git repository: keywords: author: license: (ISC) About to write to D:\web\node\okadaGo\package.json: { "name": "okada_go", "version": "1.0.0", "description": "", "main": "index.js", "scripts": { "test": "echo \"Error: no test specified\" && exit 1" }, "author": "", "license": "ISC" } Is this ok? (yes) D:\web\node\okadaGo> 目录结构
建立三个文件夹：public、routes 和 views。
项目的文件结构如下
├─models/ ├─public/ ├─routes/ ├─views/ ├─index.js └─package.json 对应文件及文件夹的用处：
models存放操作数据库的文件public存放静态文件，如 css、图片等routes存放路由文件views存放模板文件index.js程序主文件package.json存储项目的信息，比如项目名、描述、作者、依赖等
安装依赖
安装 express 框架
npm install express --save
启动项目
进入项目的根目录，建立一个 index.js 文件，并加入如下代码
var express = require('express'); var app = express(); app.get('/', function(res, rep) { rep.send('Hello, word!'); }); app.listen(3000); 然后在控制台中输入
node index.js
接着使用浏览器访问 http://localhost:3000/，就可以看到效果了
