matplotlib给子图添加图例的方法

import matplotlib.pyplot as pltx = [1,2,3,4,5,6,7,8]y = [5,2,4,2,1,4,5,2]axe1 = plt.subplot(211)s1 = axe1.scatter(x,y, color='r', s=25, marker="o")plt.legend([s1],['A'])#或者#s1 = axe1.scatter(x,y, color='r', s=25, marker="o", label='A')#plt.legend()axe2 = plt.subplot(212)s2 = axe2.scatter(x,y, color='g', s=25, marker="o")plt.legend([s2],['B'])#或者#s2 = axe1.scatter(x,y, color='r', s=25, marker="o", label='B')#plt.legend()plt.show()