将这段matlab代码用matplotlib实现：sphere; axis vis3d hPan = sin(-pi:1:pi); vPan = cos(-pi:1:pi); for k = 1:length(hPan) campan(hPan(k),vPan(k)) pause(.1) end

以下是用Matplotlib实现的代码：

from mpl_toolkits.mplot3d import Axes3D
import matplotlib.pyplot as plt
import numpy as np
import time

fig = plt.figure()
ax = fig.add_subplot(111, projection='3d')
ax.set_box_aspect([1,1,1])
u = np.linspace(0, 2 * np.pi, 100)
v = np.linspace(0, np.pi, 100)
x = np.outer(np.cos(u), np.sin(v))
y = np.outer(np.sin(u), np.sin(v))
z = np.outer(np.ones(np.size(u)), np.cos(v))
ax.plot_surface(x, y, z, color='w', alpha=0.3)

hPan = np.sin(np.arange(-np.pi, np.pi+1, 1))
vPan = np.cos(np.arange(-np.pi, np.pi+1, 1))

for k in range(len(hPan)):
    ax.view_init(elev=vPan[k]*180/np.pi, azim=hPan[k]*180/np.pi)
    plt.pause(0.1)

需要注意的是，Matplotlib中的3D绘图需要导入Axes3D类，并使用plot_surface方法绘制球体。另外，plt.pause方法可以替代Matlab中的pause函数。