matplotlib 动态折线图

import numpy as np
import matplotlib.pyplot as plt

plt.axis([0, 100, 0, 1])
plt.ion()

xs=[0,0]
ys=[1,1]

for i in range(100):
    y = np.random.random()
    xs[0]=xs[1]
    ys[0]=ys[1]
    xs[1]=i
    ys[1]=y
    plt.plot(xs, ys)
    plt.pause(0.1)