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q2_1_crawler/q2_2.py

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+import json
+
+# 1. 读取数据
+with open('movies.json', 'r', encoding='utf-8') as f:
+    movies = json.load(f)
+
+# 2. ① 找出评分最高和最低的电影
+max_rating_movie = max(movies, key=lambda x: x['rating'])
+min_rating_movie = min(movies, key=lambda x: x['rating'])
+print(f"评分最高电影: {max_rating_movie['title']} - {max_rating_movie['rating']}")
+print(f"评分最低电影: {min_rating_movie['title']} - {min_rating_movie['rating']}")
+
+# 3. ② 统计各类型的电影数量 (字典格式)
+genre_counts = {}
+for movie in movies:
+    genre = movie['genre']
+    genre_counts[genre] = genre_counts.get(genre, 0) + 1
+print("各类型电影数量统计:")
+print(json.dumps(genre_counts, ensure_ascii=False, indent=4))
+
+# 4. ③ 统计各导演的电影数量 (字典格式)
+director_counts = {}
+for movie in movies:
+    director = movie['director']
+    director_counts[director] = director_counts.get(director, 0) + 1
+print("各导演电影数量统计:")
+print(json.dumps(director_counts, ensure_ascii=False, indent=4))
+
+# 5. ④ 统计2020年（含）以后上映的电影数量
+count_post_2020 = sum(1 for movie in movies if movie['year'] >= 2020)
+print(f"2020年(含)以后上映的电影数量: {count_post_2020}")