diff --git a/q4_1.py b/q4_1.py
new file mode 100644
index 0000000..853ab26
--- /dev/null
+++ b/q4_1.py
@@ -0,0 +1,24 @@
+import json
+import matplotlib.pyplot as plt
+
+with open("movies.json", "r", encoding="utf-8") as f:
+    data = json.load(f)
+movies = data["movies"]
+
+genre_count = {}
+for movie in movies:
+    genre = movie["genre"]
+    if genre in genre_count:
+        genre_count[genre] += 1
+    else:
+        genre_count[genre] = 1
+genres = list(genre_count.keys())
+counts = list(genre_count.values())
+plt.figure(figsize=(8, 5))
+plt.bar(genres, counts)
+plt.xlabel("类型名称")
+plt.ylabel("电影数量")
+plt.title("类型电影数量分布")
+plt.savefig("q4_1_bar.png", dpi=150, bbox_inches="tight")
+
+plt.show()
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