yarn add css-loader extract-text-webpack-plugin file-loader glob html-loader html-webpack-plugin jquery less less-loader style-loader url-loader webpack webpack-dev-server
node .\node_modules\webpack-dev-server\bin\webpack-dev-server.js --devtool eval --progress --colors --hot --content-base
node .\node_modules\webpack-dev-server\bin\webpack-dev-server.js --inline --hot
webpack --watch // 仅仅起到监视作用