python实现随机漫步算法

本文实例为大家分享了python实现随机漫步的具体代码，供大家参考，具体内容如下

编写randomwalk类

from random import choice

class randomwalk():

def __init__(self,num_points=5000):

self.num_points=num_points

self.x_values=[0]
   self.y_values=[0]

def fill_walk(self):

while len(self.x_values)<self.num_points:
     x_direction=choice([1,-1])
     x_distance=choice([0,1,2,3,4,5])
     x_step=x_direction*x_distance
     y_direction=choice([1,-1])
     y_distance=choice([0,1,2,3,4,5])
     y_step=y_direction*y_distance

if x_step==0 and y_step==0:
       continue

self.x_values.append(self.x_values[-1]+x_step)
     self.y_values.append(self.y_values[-1]+y_step)

choice([1,-1])*步数巧妙的完成了随机方向，x轴随机加y轴随机使得4个方向的随机漫步得以完成

显示随机漫步点

import matplotlib.pyplot as plt
from random_walk import randomwalk

while True:
 rw=randomwalk()
 rw.fill_walk()
 plt.figure(figsize=(15,8))
 point_numbers=list(range(rw.num_points))

plt.scatter(rw.x_values,rw.y_values,s=1,c=point_numbers,
 edgecolor='none',cmap=plt.cm.Blues)

plt.scatter(rw.x_values[0],rw.y_values[0],s=50,edgecolor='none',
 c='green')

plt.scatter(rw.x_values[-1],rw.y_values[-1],s=50,edgecolor='none',
 c='green')

plt.show()

a=input("do you want to walk again?(y/n)")
 if a=='n':
   break

来源：https://blog.csdn.net/Joliph/article/details/76615600