1.查看集合

show collections

2.向集合中添加数据

db.runoob.insertMany([

{

'title':'data1',

'url':'https://blog.51cto.com/suyanzhu',

'description':'this is data1',

'view':5000

},

{

'title':'data2',

'url':'https://blog.51cto.com/suyanzhu',

'description':'this is data2',

'view':3650

},

{

'title':'data3',

'url':'https://blog.51cto.com/suyanzhu',

'description':'this is data3',

'view':9527

}

])

3.查看数据

db.runoob.find().pretty()

4.多条件AND查询

db.runoob.find({'title':'data1','view':5000}).pretty()

5.多条件OR查询

db.runoob.find({$or:[{'title':'data1'},{'view':{$gt:5000}}]}).pretty()

6.同时使用and和or的查询

db.runoob.find({'view':{$gt:3000},$or:[{'title':'data1'},{'description':'this is data2'}]}).pretty()