编写一个RandomWalk的类
from random import choice
class RandomWalk():
def __init__(self,num_points = 5000):
#初始化随机漫步属性
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:
#前进的方向和距离
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_direction * y_distance
#拒绝原地踏步
if x_step == 0 and y_step == 0:
continue
#计算下一个点的X值和Y值
next_x = self.x_values[-1] + x_step
next_y = self.y_values[-1] + y_step
#加到列表当中
self.x_values.append(next_x)
self.y_values.append(next_y)
将类进行实例化
import matplotlib.pyplot as plt
from randwalk import RandomWalk
rw = RandomWalk()
rw.fill_walk()
plt.scatter(0,0,c='green',s=100)
#point_numbers = list(range(rw.num_points)
#plt.scatter(rw.x_values,rw.y_values,c = point_numbers,
cmap = plt.cm.Blues,edgecolor='none',s=5)
plt.scatter(rw.x_values,rw.y_values,s=5)
plt.show()
不知道为什么没有形成渐变色