随机漫步（高斯分布实现）

import numpy as np
import matplotlib.pyplot as plt

nsteps=1000
draws=np.random.normal(loc=0,scale=1,size=nsteps)
steps=np.where(draws>0,1,-1)
walk=steps.cumsum()

plt.title("Random Walk(noraml)")
plt.plot(walk,color='blue')
plt.show()