使用Python实现不同需求的排行榜功能

pip install redis

import redis

# 连接Redis
r = redis.Redis(host='localhost', port=6379, db=0)

# 添加用户积分
def add_score(user_id, score):
    r.zadd('scores', {user_id: score})

# 获取排行榜
def get_ranking(limit=10):
    return r.zrevrange('scores', 0, limit - 1, withscores=True)

# 示例
add_score('user1', 200)
add_score('user2', 150)
add_score('user3', 300)

print(get_ranking())  # 输出：[('user3', 300), ('user1', 200), ('user2', 150)]

from datetime import datetime, timedelta
# 获取当前日期对应的键名
def get_key():
    today = datetime.now().strftime('%Y%m%d')
    return f'scores:{today}'
# 更新用户积分
def update_score(user_id, score):
    key = get_key()
    r.zadd(key, {user_id: score})
# 按日获取排行榜
def get_daily_ranking(limit=10):
    today = get_key()
    return r.zrevrange(today, 0, limit - 1, withscores=True)
# 每日零点清除前一天的积分
def clear_yesterday_scores():
    yesterday = (datetime.now() - timedelta(days=1)).strftime('%Y%m%d')
    r.delete(f'scores:{yesterday}')
# 示例
update_score('user1', 200)
update_score('user2', 150)
update_score('user3', 300)
print(get_daily_ranking()) 
# 在每日零点执行clear_yesterday_scores函数