from random
import choice
import matplotlib
.pyplot
as plt
x_start
= [0]
y_start
= [0]
#生成坐标矩阵
while len(x_start
)<10000:
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
next_x
=x_start
[-1]+x_step
next_y
=y_start
[-1]+y_step
x_start
.append(next_x
)
y_start
.append(next_y
)
#设置窗口大小,像素
plt
.figure(dpi
=128,figsize
=(5,3))
#绘制
plt
.scatter(x_start
,y_start
,c
=list(range(10000)),cmap
=plt
.cm
.Blues
,edgecolors
='none',s
=15)
#突出起始与结束
plt
.scatter(0,0,c
='red',edgecolors
='none',s
=80)
plt
.scatter(x_start
[-1],y_start
[-1],c
='orange',edgecolors
='none',s
=80)#edgecolors
='none'去除点的黑色轮廓,只显示蓝色的点
#隐藏坐标轴
plt
.axes().get_xaxis().set_visible(False
)
plt
.axes().get_yaxis().set_visible(False
)
plt
.title('random—choice')
plt
.savefig('C://Users/Administrator/Desktop/text3.png')
plt
.show()
结果展示
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