import pymongo
myclient = pymongo.MongoClient('localhost', 27017) # 连接MongoDB
db = myclient['temp_user_info']
DataYuan = db['qqandtel']
DataResult = db["result"]

# DataYuan.insert_one({"姓名":"小明","年龄":9})

print(DataYuan.find_one({"姓名":"小明"})["年龄"])