使用自定义类别从Pandas制作饼图

import pandas as pd
import matplotlib.pyplot as plt

data = {'类别': ['电子产品', '家具', '服装', '食品'],
        '销售额': [5000, 3000, 2000, 4000]}
df = pd.DataFrame(data)

grouped = df.groupby('类别')['销售额'].sum()

labels = grouped.index
colors = ['blue', 'green', 'orange', 'red']
plt.pie(grouped, labels=labels, colors=colors, autopct='%1.1f%%')

plt.title('销售额按类别分布')
plt.legend()
plt.show()