尝试用angular1+webpack+es6这些东西做个项目， build配置遇到了这2个问题希望可以得到建议：

1. 切换环境-切换变量，api地址等

2. 代码保存以后不用手动编译和刷新， css改动可以自动编译及不用刷新页面。

贴一下现在的配置。

{ "name": "kaas", "version": "1.0.0", "description": "", "title":"KAASSSSS", "main": "index.js", "dependencies": { "angular": "^1.5.8", "angular-animate": "^1.5.8", "angular-ui-bootstrap": "^2.0.1", "angular-ui-router": "^0.3.1", "font-awesome": "^4.6.3", "lodash": "^4.14.2" }, "devDependencies": { "autoprefixer-loader": "^3.2.0", "babel-core": "^6.13.2", "babel-loader": "^6.2.4", "babel-preset-es2015": "^6.13.2", "css-loader": "^0.23.1", "file-loader": "^0.9.0", "html-loader": "^0.4.3", "html-webpack-plugin": "^2.22.0", "ng-annotate-loader": "^0.1.1", "node-sass": "^3.8.0", "path": "^0.12.7", "sass-loader": "^4.0.0", "style-loader": "^0.13.1", "webpack": "^1.13.1", "webpack-dev-server": "^1.14.1" }, "scripts": { "test": "echo \"Error: no test specified\" && exit 1", "build": "rm -rf www/* && webpack -p", "dev": "webpack-dev-server --port 9100 --watch --progress --colors" }, "author": "Jin", "license": "ISC" }

var path = require('path'), webpack = require("webpack"), srcPath = path.join(__dirname, 'src'), wwwPath = path.join(__dirname, 'www'), pkg = require('./package.json'), HtmlWebpackPlugin = require('html-webpack-plugin'); var config = { entry: path.join(srcPath, 'index.js'), output: { path: path.join(wwwPath), filename: 'bundle.js' }, module: { loaders: [ { test: /\.(png|jpg)$/, loader: 'file?name=img/[name].[ext]' }, { test: /\.css$/, loader: "style!css" }, { test: /\.scss$/, loader: "style!css!autoprefixer!sass" }, { test: /\.js$/, exclude: /(node_modules)/, loader: "ng-annotate?add=true!babel?presets[]=es2015" }, { test: [/fontawesome-webfont\.svg/, /fontawesome-webfont\.eot/, /fontawesome-webfont\.ttf/, /fontawesome-webfont\.woff/, /fontawesome-webfont\.woff2/], loader: 'file?name=fonts/[name].[ext]' }] }, plugins: [ new HtmlWebpackPlugin({ filename:'index.html', template: path.join(srcPath, 'index.html') }), new webpack.optimize.OccurenceOrderPlugin(), new webpack.optimize.DedupePlugin() ] }; module.exports = config;