import json
import matplotlib.pyplot as plt

with open("../q2_1_crawler/movies.json","r",encoding="utf-8") as f:
    data = json.load(f)
movies = data["movies"]

ratings = [i["rating"] for i in movies]
plt.hist(ratings,edgecolor="black")
plt.xlabel("评分")
plt.savefig("q4_3a_hist.png",dpi=150)
plt.close()