Commit d7487d6

14. 绘制雪花

import turtle as p

import random

def snow(snow_count):

p.hideturtle()

p.speed(500)

p.pensize(2)

for i in range(snow_count):

r = random.random()

g = random.random()

b = random.random()

p.pencolor(r, g, b)

p.pu()

p.goto(random.randint(-350, 350), random.randint(1, 270))

p.pd()

dens = random.randint(8, 12)

snowsize = random.randint(10, 14)

for _ in range(dens):

p.forward(snowsize) # 向当前画笔方向移动snowsize像素长度

p.backward(snowsize) # 向当前画笔相反方向移动snowsize像素长度

p.right(360 / dens) # 顺时针移动360 / dens度

def main():

p.setup(800, 600, 0, 0)

p.bgcolor("black")

snow(30)

p.mainloop()

main()