from pymongo import MongoClient
# 实例化Client,建立连接
client = MongoClient(host="127.0.0.1", port=27017)
# 自动创建test数据库和集合t251
collection = client["test"]["t251"]
# 往集合内插入数据
# collection.insert({"_id":10010,"name":"zhangyue","age":10})
# 插入多条数据,insert_many
# data_list = [{"name":"test{}".format(i)}for i in range(100)]
# collection.insert_many(data_list)
# 查询一个记录
t = collection.find_one({"name": "zhangyue"})
print(t)
print(11111111111111111111111111111)
t = collection.find()
for i in t:
# 这是一个游标对象,只能进行一次遍历,第二次遍历游标就在最后了,找不到对象
print(i)
向集合中插入1000条文档
from pymongo import MongoClient
client = MongoClient()
cllection = client["work1"]["collection1"]
data_list = [{"name":"py{}".format(i),"_id":"{}".format(i)} for i in range(1000)]
cllection.insert_many(data_list)
t = cllection.find()
for i in t :
print(i)