建立3D曲面图

import matplotlib.pyplot as plt import matplotlib import numpy as npnp.random.seed(19680801)N = 50 x = np.random.rand(N)y = np.random.rand(N)colors = np.random.rand(N)area = (30 * np.random.rand(N))**2 plt.scatter(x, y, s=area, c=colors, alpha=0.5)plt.show()