圣诞节教你用Python绘制爱心圣诞树圣诞节教你用Python绘制爱心圣

心血来潮的一个想法，分享一下代码
代码

# -*- coding: utf-8 -*-"""Created on Sat Dec 12 12:29:09 2020@author: haoyu"""import turtle as timport random# 爱心函数# 将爱心分为两个半圆与一个正方形# r为半圆半径，l = 2r为正方形边长# 调整半径即可调整爱心大小def loving_heart(r):l = 2 * rt.left(45)t.forward(l)t.circle(r, 180)t.right(90)t.circle(r, 180)t.forward(l)# 树函数(递归)def tree(d, s):if d <= 0:returnt.forward(s)tree(d - 1, s * .8)t.right(120)tree(d - 3, s * .5)t.right(120)tree(d - 3, s * .5)t.right(120)t.backward(s) #回退函数#画爱心部分t.penup()t.goto(0,200) #设置起点位置t.pendown()t.pencolor('pink') #设置画笔颜色t.color('pink') t.begin_fill() #对图形进行填充loving_heart(20) #执行画爱心函数t.end_fill()#画树部分n = 100t.speed('fastest')#t.Turtle().screen.delay(0)t.right(225)t.color("dark green")t.backward(n * 4.8)tree(15, n)t.backward(n / 5)#绘制落叶for i in range(200):a = 200 - 400 * random.random()b = 10 - 20 * random.random()t.up()t.forward(b)t.left(90)t.forward(a)t.down()if random.randint(0, 1) == 0:t.color('tomato')else:t.color('wheat')t.circle(2)t.up()t.backward(a)t.right(90)t.backward(b)t.hideturtle()

结果

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参考：https://www.cnblogs.com/felixwang2/p/10177515.html

介绍下其他方法如何用Python画一个圣诞树呢？
最简单：

height = 5stars = 1for i in range(height):print((' ' * (height - i)) + ('*' * stars))stars += 2print((' ' * height) + '|')

效果：

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哈哈哈哈，总有一种骗了大家的感觉。
其实本文是想介绍Turtle库来画圣诞树。
方法：

import turtle screen = turtle.Screen() screen.setup(800,600) circle = turtle.Turtle() circle.shape('circle') circle.color('red') circle.speed('fastest') circle.up() square = turtle.Turtle()square.shape('square')square.color('green')square.speed('fastest')square.up()circle.goto(0,280)circle.stamp()k = 0for i in range(1, 17):y = 30*ifor j in range(i-k):x = 30*jsquare.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 += 2if 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*ifor j in range(3):x = 30*jsquare.goto(x,-y+280)square.stamp()square.goto(-x,-y+280)square.stamp()turtle.exitonclick()

效果：