python聖誕樹程式碼

1、簡單的繪製聖誕樹

新建tree1.py或者直接輸入下面程式碼執行#宣告樹的高度

height = 5

#樹的雪花數，初始為1

stars = 1

#以數的高度作為迴圈次數

for i in range(height):

print((" " * (height - i)) + ("*" * stars))

stars += 2

#輸出樹幹

print((" " * height) + "|")

1581558705868932.png

2、使用turtle繪製簡單聖誕樹

新建tree2py，輸入以下程式碼#匯入turtle庫

import turtle

#設定螢幕大小

screen = turtle.Screen()

screen.setup(800,600)

#獲取畫筆並設定一些屬性：圓形、紅色、快

circle = turtle.Turtle()

circle.shape("circle")

circle.color("red")

circle.speed("fastest")

#抬起畫筆

circle.up()

#重新獲取畫筆

square = turtle.Turtle()

#重新設定畫筆屬性：四方形、綠色、快

square.shape("square")

square.color("green")

square.speed("fastest")

#重新抬起畫筆

square.up()

#跳到指定座標位置

circle.goto(0,280)

#複製當前圖形

circle.stamp()

k = 0

for i in range(1, 17):

y = 30*i

for j in range(i-k):

x = 30*j

square.goto(x,-y+280)

square.stamp()

square.goto(-x,-y+280)

square.stamp()

if i % 4 == 0:

x = 30*(j+1)

circle.color("red")

circle.goto(-x,-y+280)

circle.stamp()

circle.goto(x,-y+280)

circle.stamp()

k += 2

if i % 4 == 3:

x = 30*(j+1)

circle.color("yellow")

circle.goto(-x,-y+280)

circle.stamp()

circle.goto(x,-y+280)

circle.stamp()

square.color("brown")

for i in range(17,20):

y = 30*i

for j in range(3):

x = 30*j

square.goto(x,-y+280)

square.stamp()

square.goto(-x,-y+280)

square.stamp()

turtle.exitonclick()

執行：

1581558728714813.png

3、使用Turtle繪製複雜聖誕樹

新建tree3.py，輸入以下程式碼#匯入所依賴的庫

from turtle import *

import random

import time

n = 80.0

#設定速度快

speed("fastest")

#背景顏色 海貝殼色，偏粉色

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: return

forward(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)

執行：