25 lines
454 B
Python
25 lines
454 B
Python
# q4_3a.py
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import json
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import matplotlib.pyplot as plt
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# 读取数据
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with open("movies.json", "r", encoding="utf-8") as f:
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data = json.load(f)
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movies = data["movies"]
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# 提取评分
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ratings = []
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for m in movies:
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ratings.append(m["rating"])
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# 绘制直方图
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plt.hist(ratings, bins=5, color="blue")
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plt.title("评分分布")
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plt.xlabel("评分")
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# 保存图片
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plt.savefig("q4_3a_hist.png", dpi=150)
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plt.close()
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print("✅ q4_3a 完成！") |