圣诞节！教你用 Python 画棵圣诞树
Python |GO |DevOps |架构 |安全 |运维
如何用Python画一个圣诞树呢？
最简单：
height = 5
stars = 1
for i in range(height):
print((' ' * (height - i)) + ('*' * stars))
stars += 2
print((' ' * height) + '|')
效果：
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。
方法一：
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 = 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()
效果：
方法二：
from turtle import *
import random
import time
n = 80.0
speed("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: 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)
效果：
感兴趣的话就赶紧尝试一下吧！
祝大家平安夜快乐！！！圣诞节快乐！！！
作者：糖甜甜甜，985高校经管研二，擅长用Python、R、tableau等工具结合统计学和机器学习模型做数据分析。个人公众号：经管人学数据分析（ID:DAT-2017）
声明：本文为作者投稿，版权归对方所有。
发布于 2018-12-26 09:29
