在pymongo中如何将数据filter并且group后取出若干条？ 如果我们要在MongoDB查询分组并获取TopN数据 数据为 [{ "name": "刘大", "age": 28, "status": "active" },{ "name": "陈二", "age": 25, "status": "active" },{ "name": "张三", "age": 25, "status

创建表 //创建表create table student(sid integer primary key autoincrement not null,gender varchar(20) not null,score integer not null); 增 insert into student(sname,gender,score) values('Li','male',