node 支持es6语法 import from

package.json  

"babel-cli": "^6.24.1",
"babel-plugin-transform-runtime": "^6.22.0",
"babel-preset-es2015": "^6.24.1",
 "babel-preset-stage-2": "^6.24.1",
 "babel-register": "^6.24.1",

再添加 .babelrc

{
  "presets": ["es2015", "stage-2"],
  "plugins": ["transform-runtime"]
}

最后需要在app.js或者自己修改了其他名字的启动文件上加上以下

require('babel-core/register');