1 import numpy as np 2 import matplotlib.pyplot as plt 3 #fig = plt.figure() 4 #ax = fig.add_subplot(111) 5 a1 = np.array([1, 2, 3, 4]) 6 a2 = np.array([1, 2, 3, 4]) 7 #ax.scatter(np.random.rand(5), np.random.rand(5)) 8 #mark = [‘s‘,‘o‘,‘^‘,‘v‘,‘>‘,‘<‘,‘d‘,‘p‘,‘h‘,‘8‘,‘+‘,‘*‘] 9 #ax.scatter(a1, a2, marker=‘s‘, color=‘blue‘)10 plt.scatter(a1, a2, marker=‘s‘, color=‘blue‘, label="TT")11 #fig.show()12 plt.legend()13 plt.show()