import json
import matplotlib.pyplot as plt

movies = json.load(open('movies.json', encoding='utf-8'))['movies']
# print(movies)
genres = {}
for m in movies:
    g = m['genre']
    if g in genres:
        genres[g] = genres[g] + 1
    else:
        genres[g] = 1
print(genres)
plt.figure(figsize=(8,5))
plt.bar(genres.keys(), genres.values())
plt.title('类型电影数量分布')
plt.xlabel('类型')
plt.ylabel('数量')
plt.savefig('q4_1_bar.png', dpi=150)