Node.js 第三方包的安装、升级、卸载，以及包依赖管理

本地安装： npm install package-name

全局全装： npm install -g  package-name

举个栗子

全局安装 React项目的脚手架 npm install -g create-react-app

npm install iview@1.0.1 --save

cnpm install iview@2.13.0 --save  //注：重新安装会覆盖旧的版本，比如版本会覆盖上面的1.0.1

升级：  npm update 

卸载：  npm uninstall 

 例如：

包依赖管理，通过package.json 

例如：npm uninstall babel-plugin-import -S//卸载了一个生成包

{

"name": "sanzhong",

"version": "1.0.0",

"description": "",

"main": "index.js",

"scripts": {

"test": "echo \"Error: no test specified\" && exit 1",

"dev": "webpack-dev-server --progress --config webpack.config.dev.js --port 6008 --open --hot"

},

"keywords": [],

"author": "",

"license": "ISC",

"devDependencies": {

"css-loader": "^0.28.11",

"file-loader": "^1.1.11",

"html-webpack-plugin": "^3.2.0",

"style-loader": "^0.20.3",

"url-loader": "^1.0.1",

"vue-lazyload": "^1.2.3",

"vue-loader": "^14.2.2",

"vue-template-compiler": "^2.5.16",

"webpack": "^3.11.0",

"webpack-dev-server": "^2.11.2"

},

"dependencies": {

"axios": "^0.18.0",

"element-ui": "^2.3.4",

"iview": "^2.13.0",

"jquery": "^3.3.1",

"moment": "^2.22.1",

"v-distpicker": "^1.0.16",

"vue-lazyload": "^1.2.3",

"vue-router": "^3.0.1",

"vuex": "^3.0.1"

}

}