本文实例讲述了pymongo实现控制mongodb中数字字段做加法的方法。分享给大家供大家参考。具体分析如下:
这个非常实用,比如我们需要给文章做访问统计,可以设置一个数字字段:hit,然后每次点击后给改字段增加1即可
import pymongo #导入pymongo 模块 conn = pymongo.Connection() #连接本地mongodb数据库 db=conn.database #database为数据库名称 collection = db.article #article为collection名称,相当于mysql里的表名 collection.update({'_id':ObjectId(id),'$inc':{'hit':1}}) # 为hit字段增加1
希望本文所述对大家的Python程序设计有所帮助。

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