如何删除Matplotlib动画中的线条？

import matplotlib.pyplot as plt
import matplotlib.animation as animation

fig, ax = plt.subplots()

line, = ax.plot([], [])

def init():
    line.set_data([], [])
    return line,

def update(frame):
    # 更新线条数据
    # 例如：line.set_data(x_data, y_data)
    return line,

ani = animation.FuncAnimation(fig, update, frames=range(num_frames), init_func=init, blit=True)

line.remove()

import matplotlib.pyplot as plt
import matplotlib.animation as animation

fig, ax = plt.subplots()
line, = ax.plot([], [])

def init():
    line.set_data([], [])
    return line,

def update(frame):
    # 更新线条数据
    # 例如：line.set_data(x_data, y_data)
    return line,

ani = animation.FuncAnimation(fig, update, frames=range(num_frames), init_func=init, blit=True)

# 删除线条
line.remove()

plt.show()