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Commit 08bff731 by BellCodeEditor
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parent 56400cb3
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Showing with 36 additions and 38 deletions
my_tree.py
import turtle import turtle
import random
from random import randint
pen = turtle.Turtle() pen = turtle.Turtle()
pen.color('teal') pen.color('teal')
# 画布大小 # 画布大小
w = turtle.Screen() w = turtle.Screen()
w.bgcolor('lightcyan') # wheat小麦 w.bgcolor('lightcyan') # wheat小麦
index=['ivory','pink']
# 移动到起点 # 移动到起点
pen.speed(100) pen.speed(10)
pen.left(90) pen.left(90)
pen.up() pen.up()
pen.backward(150) pen.backward(150)
# 后退 # 后退
def tree(n): def tree(n):
if n>=5: if n>=50:
if n<=7: pen.down()
pen.down() pen.forward(n)
pen.pencolor(random.choice(index)) pen.right(30)
pen.pensize(n//3) pen.forward(n-10)
pen.forward(n) pen.up()
angle=randint(0,30) pen.backward(n-10)
length=randint(1,12) tree(n-10)
pen.right(angle) # pen.up()
tree(n-length) # pen.backward(n-10)
pen.left(angle*2) #tree(n-10)
tree(n-length) pen.down()
pen.right(angle) # pen.backward(n-10)
pen.up() pen.left(60)
pen.backward(n) pen.forward(n-10)
pen.down() pen.up()
else: pen.backward(n-10)
pen.down() tree(n-10)
pen.color('teal') # pen.up()
pen.pensize(n//10) # pen.backward(n-10)
pen.forward(n) pen.right(30)
angle=randint(0,30) pen.backward(n)
length=randint(1,12) #tree(n-10)
pen.right(angle)
# pen.down()
# pen.left(60)
tree(n-length) # pen.forward(n-10)
pen.left(angle*2) # pen.left(30)
tree(n-length)
pen.right(angle)
pen.up()
pen.backward(n)
pen.down()
tree(60) # pen.backward(n-10)
# # pen.right(30)
# pen.backward(100)
tree(100)
turtle.done() turtle.done()
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