随机漫步有两个起点 同时开始走 路径不能重叠
## random_walk.py
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])
x_step = x_direction*x_distance
y_direction = choice([1,-1])
y_distance = choice([0,1,2,3,4])
y_step = y_distance *y_direction
if x_step ==0 and y_step ==0:
continue
x = self.x_values[-1] + x_step
y = self.y_values [-1] + y_step
self.x_values .append(x)
self.y_values .append(y)
## random
import matplotlib.pyplot as plt
from random_walk import RandomWalk
while True:
rw = RandomWalk(50_00)
rw.fill_walk()
plt.style.use('classic')
fig, ax = plt.subplots()
point_numbers = range(rw.num_points)
ax.scatter (rw.x_values ,rw.y_values ,c=point_numbers ,cmap=plt.cm.Blues,edgecolors='none', s=10)
#ax.scatter(rw.x_values, rw.y_values, s=15)
ax.scatter (0,0,c='green',edgecolors='none',s=100)
ax.scatter (rw.x_values [-1], rw.y_values [-1], c='red',edgecolors='none',s=100)
#ax.get_xaxis().set_visible(False)
#ax.get_yaxis().set_visible(False)
plt.show()
keep_running = input("Make another waik? (y/n):")
if keep_running =='n':
break