From 66e70b18d2d82aebac6ef6a270d95dce8faefb50 Mon Sep 17 00:00:00 2001
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 <2509165007@student.example.com>
Date: Mon, 6 Jul 2026 17:06:51 +0800
Subject: [PATCH] =?UTF-8?q?=E4=B8=8A=E4=BC=A0=E6=96=87=E4=BB=B6=E8=87=B3?=
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---
 41.py | 41 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 41 insertions(+)
 create mode 100644 41.py

diff --git a/41.py b/41.py
new file mode 100644
index 0000000..d2497bc
--- /dev/null
+++ b/41.py
@@ -0,0 +1,41 @@
+# q4_1.py
+import json
+import matplotlib.pyplot as plt
+
+# 1. 读取books.json文件
+with open("books.json", "r", encoding="utf-8") as f:
+    data = json.load(f)
+books = data["books"]
+
+# 2. 统计各出版社图书数量
+pub_count = {}
+for book in books:
+    pub_name = book["publisher"]
+    if pub_name in pub_count:
+        pub_count[pub_name] += 1
+    else:
+        pub_count[pub_name] = 1
+
+# 拆分x轴、y轴数据
+publish_names = list(pub_count.keys())
+book_nums = list(pub_count.values())
+
+# 3. 配置画布与绘图
+plt.figure(figsize=(10, 6))
+# 生成不同颜色
+colors = plt.cm.tab10(range(len(publishing_names)))
+# 绘制柱状图
+plt.bar(publishing_names, book_nums, color=colors)
+
+# 4. 图表样式设置
+plt.title("出版社图书数量分布", fontsize=14)
+plt.xlabel("出版社名称", fontsize=12)
+plt.ylabel("图书数量", fontsize=12)
+# X轴文字旋转45度防止重叠
+plt.xticks(rotation=45, ha="right")
+# 自动调整布局，避免标签被截断
+plt.tight_layout()
+
+# 5. 保存图片
+plt.savefig("q4_1_bar.png", dpi=150)
+plt.show()
\ No newline at end of file