建立与MongoDB之间的连接:官方文档
#coding:utf-8 import pymongo client = pymongo.MongoClient(‘127.0.0.1‘,27017) # 建立与MongoDB的连接 #有用户名和密码时:pymongo.MongoClient(‘mongodb://用户名:密码@localhost:27017/基于哪个数据库进行验证的‘) db = client.xingedb # 切换使用的数据库 # 增 # db.t1.insert_one({‘name‘:‘abc‘,‘age‘:18}) # insert_more # 改 # db.t1.update_one({‘name‘:‘abc‘},{‘$set‘:{‘name‘:‘123‘}}) # update_more # 删 # db.t1.delete_one({‘name‘:‘123‘}) # delete_more # 查 # cursor = db.t1.find({‘age‘:{‘$gt‘:17}}) # 返回一个游标对象 # find_one # # 显示方法1: # for i in cursor: # print(i) # # 方法2: # cursor.next() # cursor.next() # cursor.next() # sort,skip,limit方法 # # cursor = db.t1.find({‘age‘:{‘$gt‘:17}}).sort(‘_id‘,-1).limit(1).skip(1) # # for i in cursor: # print(i) # count方法 # print(db.t1.count())