diff --git a/3.py b/3.py
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diff --git a/4.py b/4.py
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+import json
+
+# 读取生成好的电影文件
+with open("movies.json", "r", encoding="utf-8") as f:
+    data = json.load(f)
+movie_list = data["movies"]
+
+if len(movie_list) == 0:
+    print("❌ 未抓取到任何电影数据，请先运行pachong.py！")
+else:
+    # ① 找出评分最高、最低电影
+    sorted_movies = sorted(movie_list, key=lambda x: x["rating"])
+    lowest_movie = sorted_movies[0]
+    highest_movie = sorted_movies[-1]
+    print("\n① 评分最高&最低电影：")
+    print(f"评分最低：{lowest_movie['title']} {lowest_movie['rating']}")
+    print(f"评分最高：{highest_movie['title']} {highest_movie['rating']}")
+
+    # ② 统计各类型电影数量（字典输出）
+    genre_count = {}
+    for m in movie_list:
+        g = m["genre"]
+        genre_count[g] = genre_count.get(g, 0) + 1
+    print("\n② 各类型电影数量：", genre_count)
+
+    # ③ 统计各导演电影数量（字典输出）
+    director_count = {}
+    for m in movie_list:
+        d = m["director"]
+        director_count[d] = director_count.get(d, 0) + 1
+    print("\n③ 各导演电影数量：", director_count)
+
+    # ④ 统计2020年（含）以后上映电影
+    count_2020 = 0
+    for m in movie_list:
+        if m["year"] >= 2020:
+            count_2020 += 1
+    print(f"\n④ 2020年(含)后上映电影总数：{count_2020}")
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