使用vue-cli脚手架新建的项目中，含有package.json。
package.json是npm的配置文件，里面设定了脚本以及项目依赖的库。 npm run dev 这样的命令就写在package.json里。
{
"name": "vue-manage", // 项目名称
"version": "1.0.0", // 版本
"description": "Reimbursement Manage", // 描述
"author": "LXG", // 作者
"private": true, //是否私人项目
"scripts": {
"dev": "node build/dev-server.js", // npm run dev 的 dev，使用node执行 build/dev-server.js
"start": "node build/dev-server.js", // npm run start 跑的是同样的命令
"build": "node build/build.js", // npm run build 跑的是 node build/build.js // 以下脚本为单元测试用到的脚本
// 以下脚本为单元测试用到的脚本
"unit": "cross-env BABEL_ENV=test karma start test/unit/karma.conf.js --single-run",
"e2e": "node test/e2e/runner.js",
"test": "npm run unit && npm run e2e"
},
"dependencies": { // dependencies 设定的是项目里使用的依赖
"vue": "^2.2.6",
"vue-router": "^2.3.1",
"element-ui": "1.3.1",
"vue-datasource": "1.0.9",
"axios": "^0.15.3",
"vue-core-image-upload": "2.1.5",
"mockjs": "^1.0.1-beta3",
"babel-polyfill": "^6.23.0"
},
"devDependencies": { //devDependencies设定的是开发使用的依赖
"autoprefixer": "^6.7.2", // 是用于给css3属性自动加属性前缀的
"babel-core": "^6.22.1", // babel相关的都是用于处理es6语法的
"babel-loader": "^6.2.10",
"babel-plugin-transform-runtime": "^6.22.0",
"babel-preset-env": "^1.3.2",
"babel-preset-stage-2": "^6.22.0",
"babel-register": "^6.22.0",
"chalk": "^1.1.3", // chalk适用于格式化输出命令行信息的，比如run dev以后的start...
"connect-history-api-fallback": "^1.3.0",
"copy-webpack-plugin": "^4.0.1",
"css-loader": "^0.28.0", // 所有的*-loader都是 webpack的扩展，webpack是把各种资源理解为一个模块，css-loader就是读取css模块的加载器
"eslint": "^3.19.0", // eslint 相关是代码格式化检查工具，开启以后要严格遵照它规定的格式进行开发 (我一般把它关了，为了显示特意加上的)
"eventsource-polyfill": "^0.9.6",
"express": "^4.14.1", // express 用于启动 node http server的服务
"extract-text-webpack-plugin": "^2.0.0",
"file-loader": "^0.11.1",
"friendly-errors-webpack-plugin": "^1.1.3",
"html-webpack-plugin": "^2.28.0", // webpack 里载入和处理html的插件
"http-proxy-middleware": "^0.17.3", // node server 的中间件工具
"webpack-bundle-analyzer": "^2.2.1",
"cross-env": "^4.0.0", // 设定环境变量的工具，NODE_ENV变量跟它有关
"karma": "^1.4.1", // karma相关的都是单元测试工具
"karma-coverage": "^1.1.1",
"karma-mocha": "^1.3.0",
"karma-phantomjs-launcher": "^1.0.2",
"karma-phantomjs-shim": "^1.4.0",
"karma-sinon-chai": "^1.3.1",
"karma-sourcemap-loader": "^0.3.7",
"karma-spec-reporter": "0.0.30",
"karma-webpack": "^2.0.2",
"lolex": "^1.5.2",
"mocha": "^3.2.0",
"chai": "^3.5.0",
"sinon": "^2.1.0",
"sinon-chai": "^2.8.0",
"inject-loader": "^3.0.0",
"babel-plugin-istanbul": "^4.1.1",
"phantomjs-prebuilt": "^2.1.14",
"chromedriver": "^2.27.2",
"cross-spawn": "^5.0.1",
"nightwatch": "^0.9.12",
"selenium-server": "^3.0.1", // 一个版本检查工具
"semver": "^5.3.0", // selljs是在node里跑shell命令的工具，比如‘rm -rf'
"shelljs": "^0.7.6",
"opn": "^4.0.2", // 跨平台的开启文件或者网页的工具
"optimize-css-assets-webpack-plugin": "^1.3.0",
"ora": "^1.2.0", // 命令行里自动运行的信息提示
"rimraf": "^2.6.0", // 跑shell命令 rm-rf 的工具
"url-loader": "^0.5.8", // 配合webpack的加载器
"vue-loader": "^11.3.4", // 配合webpack的加载器
"vue-style-loader": "^2.0.5", // 配合webpack的加载器
"vue-template-compiler": "^2.2.6", // vue-template-compiler，可能是配合离线版vue
"webpack": "^2.3.3", // webpack相关的用于，把图片，*.vue, *.js, 这些组合成最终的项目，webpack-dev用于跑测试服务器
"webpack-dev-middleware": "^1.10.0",
"webpack-hot-middleware": "^2.18.0",
"webpack-merge": "^4.1.0",
"babel-preset-es2015": "^6.22.0",
"function-bind": "^1.1.0",
"webpack-bundle-analyzer": "^2.2.1"
}, // 项目依赖的引擎版本
"engines": {
"node": ">= 4.0.0",
"npm": ">= 3.0.0"
},
"browserslist": [
"> 1%",
"last 2 versions",
"not ie <= 8"
]
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