数据可视化之matplotlib实战：plt.annotate()函数 添加图形内容细节的指向型注释文本

import matplotlib.pyplot as plt import numpy as np x = np.linspace(0.05,10,1000) y = np.sin(x) plt.plot(x,y,ls="-.",lw=2,c="c",label="plot figure") plt.legend() plt.annotate("maximum", xy=(np.pi/2,1.0), xytext=((np.pi/2)+1.0,.8), weight = "bold", color = "b", arrowprops=dict(arrowstyle="->",connectionstyle="arc3",color="b")) plt.show()