https://github.com/shushanfx/family_together

https://github.com/shushanfx/family_together

Last synced: about 2 months ago
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• Host: GitHub
• URL: https://github.com/shushanfx/family_together
• Owner: shushanfx
• Created: 2016-01-27T05:30:27.000Z (almost 9 years ago)
• Default Branch: master
• Last Pushed: 2016-01-27T07:10:24.000Z (almost 9 years ago)
• Last Synced: 2023-08-09T09:55:01.326Z (over 1 year ago)
• Language: JavaScript
• Size: 137 KB
• Stars: 1
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: readme.md

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README

        
# family_together

-------------------------------------

## nodejs开发流程

* 安装nodejs,npm等开发环境；

* 安装开发工具（IDE），推荐使用[vscode](https://code.visualstudio.com/ "vscode")；

* 启动开发工具，如下图    

	![VSCode](./doc/images/vscode.png)

* 新建一个文件index01.js，加入如下代码(详细见index01.js)     

````javascript   

function sayHello(name){   

	console.info("Hello " + name);   

}   

sayHello("World");   

````

* 打开命令行，执行命令node index01.js   

	![run01](./doc/images/run01.png)     

	![run02](./doc/images/run02.png)

## npm包管理

NPM，Node Package Management, 是一款nodejs的包管理工具。     

常用的命令有 npm start, npm install, npm init等

## 抓取样例

* 安装包    

	npm install jsdom       

	![install](./doc/images/npm_install.png)    

* 编写js文档，详细讲examples/index02.js     

````javascript    

var jsdom = require("jsdom");

jsdom.env(

  "http://www.starbucks.com.tw/coffee/catalog.jspx",

  ["http://code.jquery.com/jquery.js"],

  function (err, window) {

      console.log("Scan for images...");

      window.$("img").each(function(index, item){

        console.log("Src: " + window.$(item).attr("src")); 

      });

      console.log("Scan for links...");

      window.$("a").each(function(index, item){

        console.log("Href: " + window.$(item).attr("href"));

        console.log("Content: " + window.$(item).text());    

      });

  }

);

````    

* 执行代码： node index02.js    

	![run](./doc/images/npm_run.png)