饼图

import matplotlib.pyplot as plt
import matplotlib

# 设置中文字体
matplotlib.rcParams['axes.unicode_minus'] = False
matplotlib.rcParams['font.sans-serif'] = ['Microsoft YaHei']
matplotlib.rcParams['font.family']='sans-serif'

slices = [7,2,2,13]
activities = ['睡觉','吃饭','工作','玩耍']
cols = ['c','m','r','b']
plt.pie(slices,
    labels=activities,
    colors=cols,
    startangle=90,
    shadow= True,
    explode=(0, 0.1, 0, 0),
    autopct='%1.1f%%')
plt.title('编程字典-matplotlib教程')
plt.show()