Python语言基础
Python语言进阶
Python数据结构

按降序对结果排序

按降序对结果排序详细操作教程
以下实例为学习按降序对结果排序(反向字母顺序),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"]
mydoc = mycol.find().sort("name", -1)
for x in mydoc:
  print(x)
执行以上代码输出结果为:
# Filename : example.py
# Author by : www.lidihuo.com

{'_id': 12, 'name': 'William', 'address': 'Central st 954'}

{'_id': 14, 'name': 'Viola', 'address': 'Sideway 1633'}

{'_id': 10, 'name': 'Vicky', 'address': 'Yellow Garden 2'}

{'_id': 9, 'name': 'Susan', 'address': 'One way 98'}

{'_id': 6, 'name': 'Sandy', 'address': 'Ocean blvd 2'}

{'_id': 8, 'name': 'Richard', 'address': 'Sky st 331'}

{'_id': 2, 'name': 'Peter', 'address': 'Lowstreet 27'}

{'_id': 5, 'name': 'Michael', 'address': 'Valley 345'}

{'_id': 1, 'name': 'John', 'address': 'Highway37'}

{'_id': 4, 'name': 'Hannah', 'address': 'Mountain 21'}

{'_id': 13, 'name': 'Chuck', 'address': 'Main Road 989'}

{'_id': 7, 'name': 'Betty', 'address': 'Green Grass 1'}

{'_id': 11, 'name': 'Ben', 'address': 'Park Lane 38'}

{'_id': 3, 'name': 'Amy', 'address': 'Apple st 652'}
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