import pymongo
import pymongo
client = pymongo.MongoClient()
db = conn.database
# 或
db = conn['database']
accout = db.collection
# 或
accout = db['collection']
db.collection_name()
db.collection.find_one()
db.collection.find_one({'userName' : 'keyword'})
db.collection.find_one({}, {'username':1,'email':1})
db.collection.find_one({},{'username':1,'email':1,"_id":0})
for item in db.collection.find():
item
for item in db.collection.find({"username":"libing"}):
item['username']
db.collection.find(),count()
db.collection.find({"username":"keyword"}).count()
db.collection.find().sort("username")
# 默認(rèn)升序
db.collection.find().sort("username",pymongo.ASCENDING)
# 升序
db.collection.find().sort("username",pymongo.DESCENDING)
# 降序
db.collection.find().sort([("username",pymongo.ASCENDING),("Email",pymongo.DESCENDING)])
db.collection.insert({"accout":21,"username":"libing"})
db.collection.update({"username":"libing"},{"$set":{"email":"libing","password","123"}})
db.collection.remove()
db.collection.remove({"username":"keyword"})
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