绘制 2000 年与 2016 年产业结构饼图
import matplotlib.pyplot as plt
import numpy as np
data=np.load('./国民经济核算季度数据.npz',allow_pickle=True)
name=data['columns']
values=data['values']
plt.rcParams['font.sans-serif'] = 'SimHei'
plt.rcParams['axes.unicode_minus'] = False
pic = plt.figure(dpi = 100, figsize = (8, 4))
plt.rcParams['font.sans-serif'] = 'SimHei'
a_labs = [i[: 4] for i in name[3: 6]]
b_labs = [i[: 2] for i in name[6:]]
explode = [0.01, 0.01, 0.01]
pic.add_subplot(1, 2, 1)
plt.pie(np.sum(values[:4,3:6],axis=0),autopct='%1.1f%%',