擅长:python、mysql、java
<p>find方法返回一个游标,它是对查询结果集的引用。你知道吗</p>
<p>你知道吗光标.py你知道吗</p>
<pre><code>#!/usr/bin/python3
from pymongo import MongoClient
client = MongoClient('mongodb://localhost:27017/')
with client:
db = client.testdb
cars = db.cars.find()
print(cars.next())
print(cars.next())
print(cars.next())
cars.rewind()
print(cars.next())
print(cars.next())
print(cars.next())
print(list(cars))
</code></pre>