46 lines
1.7 KiB
Python
46 lines
1.7 KiB
Python
import json
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from collections import defaultdict
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# 读取数据
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with open("movies.json", "r", encoding="utf-8") as f:
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data = json.load(f)
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movies = data.get("movies", [])
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# ① 找出评分最高和最低的电影
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if movies:
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# 按rating排序，处理可能的空值
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sorted_by_rating = sorted(movies, key=lambda x: float(x["rating"]) if x["rating"] else 0)
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lowest = sorted_by_rating[0]
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highest = sorted_by_rating[-1]
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print("评分最低：", lowest["title"], lowest["rating"])
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print("评分最高：", highest["title"], highest["rating"])
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else:
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print("无电影数据")
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# ② 统计各类型的电影数量（注意genre可能是列表或字符串，这里按常见的逗号分隔处理）
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genre_count = defaultdict(int)
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for movie in movies:
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genres = movie["genre"]
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# 如果genre是字符串，按逗号分割；如果是列表，直接遍历
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if isinstance(genres, str):
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genres = [g.strip() for g in genres.split(",")]
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for g in genres:
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genre_count[g] += 1
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print("\n各类型电影数量：", dict(genre_count))
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# ③ 统计各导演的电影数量
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director_count = defaultdict(int)
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for movie in movies:
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director = movie["director"]
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director_count[director] += 1
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print("\n各导演电影数量：", dict(director_count))
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# ④ 统计2020年（含）以后上映的电影数量
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count_2020 = 0
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for movie in movies:
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year = movie["year"]
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if isinstance(year, (int, float)) and year >= 2020:
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count_2020 += 1
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elif isinstance(year, str) and year.isdigit() and int(year) >= 2020:
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count_2020 += 1
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print(f"\n2020年（含）以后上映的电影数量：{count_2020}") |