npm package.json

{
       "name": "test",               //当前目录名，全部小写
       "version": "1.0.0",           //版本号,x.x.x 的格式
       "description": "",            //描述信息，有助于搜索
       "main": "index.js",           //入口文件，一般都是 index.js
       "scripts":{                   //支持的脚本，默认是一个空的 test
         "test": "echo \"Error: no test specified\" && exit 1"
       },
       "dependencies": {             //在生产环境中需要用到的依赖
         "babel-loader": "^7.1.5",
         "gulp": "^4.0.2",
         "gulp-imagemin": "^6.1.1",
         "gulp-less": "^4.0.1",
         "gulp-minify-css": "^1.2.4",
         "gulp-uglify": "^3.0.2",
         "mixin": "^0.2.0",
         "react": "^16.11.0",
         "react-dom": "^16.11.0",
         "webpack-cli": "^3.3.10"
       },
       "devDependencies": {             //在开发、测试环境中用到的依赖
         "@babel/cli": "^7.6.4",
         "@babel/core": "^7.6.4",
         "@babel/preset-es2015": "^7.0.0-beta.53",
         "@babel/preset-react": "^7.6.3",
         "webpack": "^4.41.2"
       },
       
       "keywords": [],                  //关键字，有助于使用 npm search 搜索到你的项目
       "author": "",                    //作者信息
       "license": "ISC",                //许可证默认是 MIT
       "bugs": "",                      //当前项目的一些错误信息，如果有的话
   }