Python 圣诞树和樱花树源码

樱花树：

import turtle as T
import random
import time# 画樱花的躯干(60,t)
def Tree(branch, t):time.sleep(0.0005)if branch > 3:if 8 <= branch <= 12:if random.randint(0, 2) == 0:t.color('snow')  # 白else:t.color('lightcoral')  # 淡珊瑚色t.pensize(branch / 3)elif branch < 8:if random.randint(0, 1) == 0:t.color('snow')else:t.color('lightcoral')  # 淡珊瑚色t.pensize(branch / 2)else:t.color('sienna')  # 赭(zhě)色t.pensize(branch / 10)  # 6
        t.forward(branch)a = 1.5 * random.random()t.right(20 * a)b = 1.5 * random.random()Tree(branch - 10 * b, t)t.left(40 * a)Tree(branch - 10 * b, t)t.right(20 * a)t.up()t.backward(branch)t.down()# 掉落的花瓣
def Petal(m, t):for i in range(m):a = 200 - 400 * random.random()b = 10 - 20 * random.random()t.up()t.forward(b)t.left(90)t.forward(a)t.down()t.color('lightcoral')  # 淡珊瑚色t.circle(1)t.up()t.backward(a)t.right(90)t.backward(b)# 绘图区域
t = T.Turtle()
# 画布大小
w = T.Screen()
t.hideturtle()  # 隐藏画笔
t.getscreen().tracer(5, 0)
w.screensize(bg='wheat')  # wheat小麦
t.left(90)
t.up()
t.backward(150)
t.down()
t.color('sienna')# 画樱花的躯干
Tree(60, t)
# 掉落的花瓣
Petal(200, t)
w.exitonclick()

效果：

 

圣诞树：

from turtle import *
import random
import timen = 100.0speed("fastest")
screensize(bg='seashell')
left(90)
forward(3*n)
color("orange", "yellow")
begin_fill()
left(126)for i in range(5):forward(n/5)right(144)forward(n/5)left(72)
end_fill()
right(126)color("dark green")
backward(n*4.8)
def tree(d, s):if d <= 0: returnforward(s)tree(d-1, s*.8)right(120)tree(d-3, s*.5)right(120)tree(d-3, s*.5)right(120)backward(s)
tree(15, n)
backward(n/2)for i in range(200):a = 200 - 400 * random.random()b = 10 - 20 * random.random()up()forward(b)left(90)forward(a)down()if random.randint(0, 1) == 0:color('tomato')else:color('wheat')circle(2)up()backward(a)right(90)backward(b)time.sleep(60)

效果：

参考：

　　https://blog.csdn.net/weixin_43943977/article/details/102691392