{mapreduce:"topic",
query:{'time':{'$gte':1443715200}},
map:function(){emit({name:this.name},this.clickNum);},
reduce:function(clickNum,numbers){return Array.sum(numbers);},
out:{inline:1}});用上面的代码查询后一共有300条数据，这个时候如何对集合进行分页，比如一页20条
![[Web-Frontend] Node.js-Schnellstart](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
out可以输出到某个集合，然后对该集合查询，分页