python绘制正弦函数动画

• 编写如下代码，保存为sin.py：

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

def fun(x):
    return np.sin(x)

fig, ax = plt.subplots()
line, = ax.plot(np.linspace(0, 2*np.pi, 100), fun(np.linspace(0, 2*np.pi, 100)))
ax.set_xlim(0, 2*np.pi)
ax.set_ylim(-1, 1)

def donghua(frame):
    x = np.linspace(0+frame, 2*np.pi+frame, 100)
    y = fun(x)
    line.set_data(x, y)
    ax.set_xlim(0+frame, 2*np.pi+frame)
    return line,

animation = FuncAnimation(fig, donghua, frames=np.linspace(0, 10*np.pi, 100), interval=10)

animation .save('sin.gif', writer='pillow', fps=1000)

执行sin.py：

python sin.py

执行完后能在当前目录看到sin.gif图片：