qq_36120059的博客

1.select select * from people db.people.find() 2.显示想要的字段 select name,age from people db.people.find({},{name:1,age:1,_id:0}) 第一个{}是进行过滤的地方，第二个{}是确认显示的字段 3.过滤 select name from people where name='zhangsan' db.peo..