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q2_2.py

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+import json
+
+# 读取本地json文件
+with open("movies.json", "r", encoding="utf-8") as f:
+    data = json.load(f)
+movie_list = data["movies"]
+
+# ① 找出评分最高、最低电影并打印
+ratings = [m["rating"] for m in movie_list]
+max_rating = max(ratings)
+min_rating = min(ratings)
+
+max_movies = [m for m in movie_list if m["rating"] == max_rating]
+min_movies = [m for m in movie_list if m["rating"] == min_rating]
+
+print("===== 1. 评分极值电影 =====")
+print("评分最高的电影：")
+for m in max_movies:
+    print(f"{m['title']} - {m['rating']}")
+print("评分最低的电影：")
+for m in min_movies:
+    print(f"{m['title']} - {m['rating']}")
+
+# ② 统计各类型电影数量
+genre_count = {}
+for m in movie_list:
+    g = m["genre"]
+    genre_count[g] = genre_count.get(g, 0) + 1
+print("\n===== 2. 各类型电影数量 =====")
+print(genre_count)
+
+# ③ 统计各导演电影数量
+director_count = {}
+for m in movie_list:
+    d = m["director"]
+    director_count[d] = director_count.get(d, 0) + 1
+print("\n===== 3. 各导演电影数量 =====")
+print(director_count)
+
+# ④ 统计2020（含）年后上映电影数量
+count_after_2020 = sum(1 for m in movie_list if m["year"] >= 2020)
+print("\n===== 4. 2020年(含)后上映电影总数 =====")
+print(count_after_2020)