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" ] }