用python绘制动画线条图

pip install matplotlib

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

# 创建画布和线条对象
fig, ax = plt.subplots()
xdata, ydata = [], []
ln, = plt.plot([], [], 'r-', animated=True)

# 初始化函数
def init():
    ax.set_xlim(0, 2*np.pi)
    ax.set_ylim(-1, 1)
    return ln,

# 更新函数
def update(frame):
    xdata.append(frame)
    ydata.append(np.sin(frame))
    ln.set_data(xdata, ydata)
    return ln,

# 创建动画
ani = FuncAnimation(fig, update, frames=np.linspace(0, 2*np.pi, 128),
                    init_func=init, blit=True)

# 显示动画
plt.show()