直接上代碼:

# python3
# -*- coding: utf-8 -*-

import redis
import time

ONE_WEEK_IN_SECONDS = 7 * 86400
# 如果一篇文章獲得200個贊，那麽這篇文章就是有趣的
VOTE_SCORE = 86400 / 200

def redis_init(redis):
    # article_time記錄文章發布時間
    redis.zadd(‘article_time‘, article_100408=1496662197, article_100635=1496669721, article_100716=1496660089)
    
 
# article_score記錄文章得分
    redis.zadd(‘article_score‘, article_100408=1496666517, article_100635=1496670153, article_100716=1496665705)
    # voted_article_id記錄編號為article_id的文章的點贊用戶集合
    redis.sadd(‘voted_100408‘, ‘user_234487‘, ‘user_253378‘, ‘user_364680‘,
               ‘user_132097‘, ‘user_350917‘)
    # 用hash描述每篇文章
 

    article_desc = {‘title‘:‘kunlun‘, ‘link‘:‘www.kunlun.com‘, ‘poster‘:‘fengge‘, ‘time‘:1441728000, ‘votes‘:523}
    redis.hmset(‘article_100408‘, article_desc)
    article_desc = {‘title‘: ‘zhuxian‘, ‘link‘: ‘www.zhuxian.com‘, ‘poster‘: ‘xiaoding‘, ‘time‘: 1081440000, ‘votes‘: 677}
    redis.hmset(‘article_100635
 
‘, article_desc)
    article_desc = {‘title‘: ‘soushenji‘, ‘link‘: ‘www.soushenji.com‘, ‘poster‘: ‘shuxiayehu‘,
                    ‘time‘: 1187280000, ‘votes‘: 421}
    redis.hmset(‘article_100635‘, article_desc)

def article_note(conn, user, article):
    cutoff = time.time() - ONE_WEEK_IN_SECONDS
    if conn.zscore(‘article_time‘, article) < cutoff:
        return

    article_id = article.partition(‘_‘)[-1]
    if conn.sadd(‘voted_‘ + article_id, user):
        conn.zincrby(‘article_score‘, article, VOTE_SCORE)
        conn.hincrby(article, ‘votes‘, 1)


r = redis.StrictRedis(host=‘redis_server_ip‘, port=6379, password=‘redis_passwd‘, db=0)
redis_init(r)
article_note(r,‘use_115423‘, ‘article_100408‘)

參考資料:

《Redis實戰》

Redis之網站文章投票