python3用turtle模塊畫(huà)一棵隨機(jī)櫻花樹(shù)
#!/usr/bin/env python
# coding=utf-8
# 畫(huà)一棵櫻花
import turtle
import random
from turtle import *
from time import sleep
# 畫(huà)櫻花的軀干(60,t)
def tree(branchLen,t):
sleep(0.0005)
if branchLen >3:
if 8<= branchLen <=12:
if random.randint(0,2) == 0:
t.color('snow') # 白
else:
t.color('lightcoral') # 淡珊瑚色
t.pensize(branchLen / 3)
elif branchLen <8:
if random.randint(0,1) == 0:
t.color('snow')
else:
t.color('lightcoral') # 淡珊瑚色
t.pensize(branchLen / 2)
else:
t.color('sienna') # 赭(zhě)色
t.pensize(branchLen / 10) # 6
t.forward(branchLen)
a = 1.5 * random.random()
t.right(20*a)
b = 1.5 * random.random()
tree(branchLen-10*b, t)
t.left(40*a)
tree(branchLen-10*b, t)
t.right(20*a)
t.up()
t.backward(branchLen)
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)
def main():
# 繪圖區(qū)域
t = turtle.Turtle()
# 畫(huà)布大小
w = turtle.Screen()
t.hideturtle() # 隱藏畫(huà)筆
getscreen().tracer(5,0)
w.screensize(bg='wheat') # wheat小麥
t.left(90)
t.up()
t.backward(150)
t.down()
t.color('sienna')
# 畫(huà)櫻花的軀干
tree(60,t)
# 掉落的花瓣
petal(200, t)
w.exitonclick()
main()
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