#add-text-loader
add text in load file 在读取的文件前加一行字符串，可以忽略一些文件
你可以在你的webpack里配置add-text-loader，并且可以忽略一些文件
You can config the loader's behavior by adding an field in your webpack config and ignore some file:
var webpack = require('webpack')
module: {
loaders: [
{
test: /\.less$/,
loader: ['css-loader!less-loader!add-text-loader?add= @import "../styles/index";&ignore="packages/styles"']
},
]
}