下面是一个让您开始学习的示例：
import numpy as np
from matplotlib import pyplot as plt
from matplotlib import animation
X, Y = np.mgrid[:2*np.pi:10j,:2*np.pi:5j]
U = np.cos(X)
V = np.sin(Y)
fig, ax = plt.subplots(1,1)
Q = ax.quiver(X, Y, U, V, pivot='mid', color='r', units='inches')
ax.set_xlim(-1, 7)
ax.set_ylim(-1, 7)
def update_quiver(num, Q, X, Y):
"""updates the horizontal and vertical vector components by a
fixed increment on each frame
"""
U = np.cos(X + num*0.1)
V = np.sin(Y + num*0.1)
Q.set_UVC(U,V)
return Q,
# you need to set blit=False, or the first set of arrows never gets
# cleared on subsequent frames
anim = animation.FuncAnimation(fig, update_quiver, fargs=(Q, X, Y),
interval=50, blit=False)
fig.tight_layout()
plt.show()
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