MongoDB Simple to use

//python1.连接client=pymongo.MongoClient("localhost", 27017)2.#获取数据库 testdb=client.test3.#获取数据库集合stu=db.stu4.打印集合个数print(stu.count())5.插入s1 = {‘name‘: ‘allen‘, ‘age‘: 18}#查获取ids1_id = stu.insert_one(s1).inserted_id6.打印 idprint(s1_id)7.查找一行temp=stu.find_one(s1) print(temp) //print(type(temp)) <class ‘dict‘>{‘_id‘: ObjectId(‘5ae034dc1d41c8293e8dec8d‘), ‘name‘: ‘allen‘, ‘age‘: 18}8.查找所有print(stu.find(s2)) //注意在 python 中返回的是对象<class ‘pymongo.cursor.Cursor‘>9.对象转成 listprint(list(stu.find())) //stu是个集合

MongoDB Simple to use