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发表于 2023-5-5 12:00:59
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本楼为最佳答案
 根据题目要求,我们需要实现一个积分抽奖程序。为了帮助你更好地理解和实现这个程序,我将为你提供一个Python实现的解决方案。你可以根据以下代码和注释自行调整和优化。
- import csv
- import random
- import time
- import os
- def load_candidates(file):
- candidates = {}
- with open(file, 'r') as f:
- reader = csv.reader(f)
- for row in reader:
- candidates[int(row[0])] = int(row[1])
- return candidates
- def update_candidates(candidates, updates):
- with open(updates, 'r') as f:
- reader = csv.reader(f)
- for row in reader:
- user_id, points_change = int(row[0]), int(row[1])
- if user_id in candidates:
- candidates[user_id] += points_change
- else:
- candidates[user_id] = points_change
- return candidates
- def save_candidates(file, candidates):
- with open(file, 'w', newline='') as f:
- writer = csv.writer(f)
- for user_id, points in candidates.items():
- writer.writerow([user_id, points])
- def draw_lottery(candidates):
- first_prize_pool = [user_id for user_id, points in candidates.items() if points >= 1000]
- second_prize_pool = [user_id for user_id, points in candidates.items() if points > 0]
- # 抽一等奖
- weights = [1 if 1000 <= candidates[user_id] <= 2000 else 2 if 2001 <= candidates[user_id] <= 3000 else 3 for user_id in first_prize_pool]
- first_prize_winner = random.choices(first_prize_pool, weights, k=1)[0]
- print(f"一等奖得主: {first_prize_winner}")
- del candidates[first_prize_winner]
- # 抽二等奖
- if len(second_prize_pool) >= 2:
- second_prize_winners = random.sample(second_prize_pool, 2)
- print(f"二等奖得主: {second_prize_winners[0]}, {second_prize_winners[1]}")
- for winner in second_prize_winners:
- del candidates[winner]
- else:
- print("没有足够的人参加二等奖抽奖")
- def main():
- candidates_file = "Candidates.csv"
- updates_file = "updates.csv"
- candidates = load_candidates(candidates_file)
- candidates = update_candidates(candidates, updates_file)
- save_candidates(candidates_file, candidates)
- while True:
- now = time.localtime()
- if now.tm_wday == 5 and 23 * 60 <= now.tm_hour * 60 + now.tm_min < 23 * 60 + 50:
- draw_lottery(candidates)
- time.sleep(10 * 60)
- else:
- break
- os.rename(updates_file, f"{time.strftime('%Y-%m-%d', now)}.csv")
- open(updates_file, 'w').close()
- if __name__ == "__main__":
- main()
复制代码
这个程序首先从Candidates.csv文件中加载用户数据,然后根据updates.csv中的积分变动记录更新用户积分。接下来,程序将在抽奖时段内每10分钟抽取一轮奖品,抽奖结束后将结果输出 |
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