git clone https://github.com/angular/quickstart.git lenapp
https://blog.csdn.net/u010130282/article/details/53613277 Angular2 之 路由与导航
https://blog.csdn.net/changyinling520/article/details/77851770 《angular2入门系列基础》——路由Route
https://www.cnblogs.com/imwtr/p/7801973.html 关于怎样使用happypack
https://www.cnblogs.com/ifat3/p/8980220.html 关于学习CSS网格布局