Python 圣诞树代码

import turtle as  t

from turtle import *

import random as r

import  time

#定义几个函数先

#定义画彩灯的函数

def drawlight():

    if r.randint(0,30) == 0:

        color('tomato')

        circle(6)

    elif r.randint(0,30) == 1:

        color('orange')

        circle(3)

    else:

        linewidth = 5

        color('dark green')

#定义画圣诞树的函数

def tree(d,s):

    if d <= 0:  return

    forward(s)

    tree(d-1, s * .8)

    right(120)

    tree(d-3, s * .5)

    drawlight()

    right(120)

    tree(d-3, s * .5)

    right(120)

    backward(s)

#定义树下面小装饰的函数

def  xzs():

    for i in range(200):

        a = 200-400* r.random()

        b = 10 -20* r.random()

        up()

        forward(b)

        left(90)

        forward(a)

        down()

        if  r.randint(0,1) == 0:

            color('tomato')

        else:

            color('wheat')

        circle(2)

        up()

        backward(a)

        right(90)

        backward(b)

#定义一个画雪花的函数

def drawsnow():

    t.hideturtle()

    t.pensize(2)

    for i in range(200):

        t.pencolor("white")

        t.penup()

        t.setx(r.randint(-350,350))

        t.sety(r.randint(-100,350))

        t.pendown()

        dens = 6

        snowsize = r.randint(1,10)

        for j in range(dens):

            t.forward(int(snowsize))

            t.backward(int(snowsize))

            t.right(int(360/dens))

n=100.0

t.pensize(10)

speed("fastest")

t.screensize(800,600, "black")

left(90)

forward(3 * n)

color("orange", "yellow")

begin_fill()

left(126)

#画五角星

for i in外汇跟单gendan5.com range(5):

    forward(n/5)

    right(144)

    forward(n/5)

    left(72)

end_fill()

right(126)

color("dark green")

backward(n * 4.8)

#调用画树的函数

tree(15 , n)

backward(n/2)

xzs()

#写文字

t.color("dark red", "red")

t.write("Merry Christmas", align="center", font=("Comic Sans MS", 40, "bold"))

# 调用雪花函数

drawsnow()

t.done()    #收笔