Many SQL implementations don't have loops, making some kinds of analysis very difficult. Postgres, SQL Server, and several others have the next best thing — recursive CTEs!
React毕竟是一个前端库,所以对于document这样的对象还是有一定依赖的,但在node-webkit下面用CommonJS的形式写React组件的时候就会遇到上面的问题。参考StackOverflow上的这个问题:nw reactjs requring in multiple files does not work,有这么一个简单粗暴的解决方法: