webpack-livereload-plugin 运行webpack --watch时的webpack --watch 安装 安装套件 # for webpack 4 npm install --save-dev webpack-livereload-plugin # for webpack 3 npm install --save-dev webpack-livereload-plugin@1 将插件添加到您的webpack配置 // webpack.config.js var LiveReloadPlugin = require ( 'webpack-livereload-plugi