Python使用matplotlib绘制动态正弦曲线图 保存为gif动图

import numpy as np import matplotlib.pyplot as plt import matplotlib.animation as animation # 定义参数 xmin = -5 xmax = 5 nbx = 150 dt = 0.1 z = np.linspace(0, 0, nbx) # 初始化画布 fig = plt.figure() (line,) = plt.plot([], [], "r", label="sinus") (line2,) = plt.plot([], [], "b", label="") plt.ylim(-1, 1) plt.xlabel("x") plt.ylabel("y") # 定义动画函数 def update(i): t = i * dt plt.xlim(xmin + t, xmax + t) x = np.linspace(xmin + t, xmax + t, nbx) y = [np.sin(a) for a in x] # or y = np.sin(x) line.set_data(x, y) line2.set_data(x, z) # return (line,) ani = animation.FuncAnimation( fig, update, frames=300, blit=False, interval=80, repeat=True ) plt.legend() plt.grid() # ani.save("sin.gif", writer="pillow") # 可以保存为gif格式 plt.show()