84669 person learning
152542 person learning
20005 person learning
5487 person learning
7821 person learning
359900 person learning
3350 person learning
180660 person learning
48569 person learning
18603 person learning
40936 person learning
1549 person learning
1183 person learning
32909 person learning
User.find({follow:true}).exec(function(err,objs){ 这里应该怎么写? Follow.find({_id:{$in:objs.followId}}) })
我想通过一个查询获取很多 id, 然后用这些 id 再去取另外一组数据.
请问有什么直接的方法吗? 还是必须要循环出objs里的所有 followId 呢?
人生最曼妙的风景，竟是内心的淡定与从容！
http://mongoosejs.com/docs/populate.html
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
http://mongoosejs.com/docs/populate.html