22 lines
565 B
Python
22 lines
565 B
Python
# q4/q4_2/q4_2.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("../q2_1_crawler/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x时长、y评分
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duration = [m["duration"] for m in movies]
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rating = [m["rating"] for m in movies]
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# 散点图：红色，透明度0.6
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plt.scatter(duration, rating, color="red", alpha=0.6)
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plt.title("时长与评分关系散点图")
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plt.xlabel("时长（分钟）")
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plt.ylabel("评分")
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plt.tight_layout()
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plt.savefig("q4_2_scatter.png", dpi=150)
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plt.show() |