From 69b8a343d75cff1fa6f0070ad5e052289df8016c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E8=83=A1=E7=BA=A2=E8=BE=89?=
 <2509165036@student.example.com>
Date: Mon, 6 Jul 2026 14:17:30 +0800
Subject: [PATCH] =?UTF-8?q?=E6=B7=BB=E5=8A=A0=204=5F2?=
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---
 4_2 | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)
 create mode 100644 4_2

diff --git a/4_2 b/4_2
new file mode 100644
index 0000000..a60aa3a
--- /dev/null
+++ b/4_2
@@ -0,0 +1,21 @@
+import matplotlib.pyplot as plt
+import json
+rating=[]
+duration=[]
+with open('movie.json', 'r', encoding='utf-8') as f:
+    data=json.load(f)
+    # print(data)
+    for i in data:
+        rating.append(i["rating"])
+        duration.append(i["duration"])
+plt.figure(figsize=(12, 8))
+plt.scatter(duration, rating,
+            c='red',
+            s=80,                      # 点的大小
+            alpha=0.6,                 # 透明度
+            edgecolors='white')         # 点的边框
+plt.title('时长与评分关系散点图', fontsize=14)
+plt.xlabel('时长', fontsize=12)
+plt.ylabel('评分', fontsize=12)
+plt.grid(True, linestyle='--', alpha=0.5)
+plt.show()