python实现雪花动态图_Python使用turtle库与random库绘制雪花

记录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。

完整代码如下：

# -*- 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()

效果图如下：