Matplotlib:如何为每个散点添加图例？

import matplotlib.pyplot as plt

x = [1, 2, 3, 4, 5]
y = [2, 4, 6, 8, 10]
labels = ['A', 'B', 'C', 'D', 'E']

plt.scatter(x, y, label=labels)

plt.legend()

import matplotlib.pyplot as plt

x = [1, 2, 3, 4, 5]
y = [2, 4, 6, 8, 10]
labels = ['A', 'B', 'C', 'D', 'E']

plt.scatter(x, y, label=labels)
plt.legend()

plt.show()