只查找某些字段
只查找某些字段详细操作教程
以下实例为学习只查找某些字段，具体代码如下：
# Filename : example.py
# Author by : www.lidihuo.com
import pymongo
myclient = pymongo.MongoClient("mongodb://localhost:27017/")
mydb = myclient["lidihuodb"]
mycol = mydb["users"]
for x in mycol.find({},{ "_id": 0, "name": 1, "address": 1 }):
print(x)
执行以上代码输出结果为：
# Filename : example.py
# Author by : www.lidihuo.com
{'name': 'John', 'address': 'Highway37'}
{'name': 'Peter', 'address': 'Lowstreet 27'}
{'name': 'Amy', 'address': 'Apple st 652'}
{'name': 'Hannah', 'address': 'Mountain 21'}
{'name': 'Michael', 'address': 'Valley 345'}
{'name': 'Sandy', 'address': 'Ocean blvd 2'}
{'name': 'Betty', 'address': 'Green Grass 1'}
{'name': 'Richard', 'address': 'Sky st 331'}
{'name': 'Susan', 'address': 'One way 98'}
{'name': 'Vicky', 'address': 'Yellow Garden 2'}
{'name': 'Ben', 'address': 'Park Lane 38'}
{'name': 'William', 'address': 'Central st 954'}
{'name': 'Chuck', 'address': 'Main Road 989'}
{'name': 'Viola', 'address': 'Sideway 1633'}
