如何使用matplotlib在Python中动画多个点沿圆的圆周移动？

import numpy as np
import matplotlib.pyplot as plt
import matplotlib.animation as animation

fig, ax = plt.subplots()

def update(frame):
    # 清除原有的点
    ax.cla()
    
    # 计算每个点的位置
    theta = np.linspace(0, 2*np.pi, num_points, endpoint=False)
    x = radius * np.cos(theta)
    y = radius * np.sin(theta)
    
    # 绘制新的点
    ax.plot(x, y, 'ro')
    
    # 设置坐标轴范围
    ax.set_xlim(-radius-1, radius+1)
    ax.set_ylim(-radius-1, radius+1)
    
    # 隐藏坐标轴
    ax.axis('off')

num_frames = 100  # 动画的帧数
num_points = 10   # 圆周上点的数量
radius = 5       # 圆的半径

ani = animation.FuncAnimation(fig, update, frames=num_frames, interval=100)

plt.show()