python使用turtle库与random库绘制雪花

代码非常容易理解，画着玩玩还是可以的。直接上代码

# -*- coding: utf-8 -*-
"""
Created on Fri Jan 12 14:35:14 2018
@author: Administrator
"""
from turtle import *
from random import *
def ground():
hideturtle()
speed(100)
for i in range(400):
pensize(randint(5,10))
x=randint(-400,350)
y=randint(-280,-1)
r=-y/280
g=-y/280
b=-y/280
pencolor(r,g,b)
penup()
goto(x,y)
pendown()
forward(randint(40,100))
def snow():
hideturtle()
speed(100)
pensize(2)
for i in range(100):
r=random()
g=random()
b=random()
pencolor(r,g,b)
penup()
setx(randint(-350,350))
sety(randint(1,270))
pendown()
dens=randint(8,12)
snowsize=randint(10,14)
for j in range(dens):
forward(snowsize)
backward(snowsize)
right(360/dens)
def main():
setup(800, 600, 0, 0)
tracer(False)
bgcolor("black")
snow()
ground()
tracer(True)
mainloop()
main()

运行结果

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