基本信息
源码名称:Python樱花树代码
源码大小:1.56KB
文件格式:.py
开发语言:Python
更新时间:2021-12-08
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   源码介绍
用简单的编程程序画樱花树

import turtle
import random
from turtle import *
from time import sleep

def tree(branchLen,t):
    sleep(0.0005)
    if branchLen > 3:
        if 8 <= branchLen <= 12:
            if random.randint(0,2) == 0:
                t.color('snow')
            else:
                t.color('lightcoral')
            t.pensize(branchLen / 3)
        elif branchLen < 8:
            if random.randint(0,1) == 0:
                t.color('snow')
            else:
                t.color('lightcoral')
            t.pensize(branchLen / 2)
        else:
            t.color('sienna')
            t.pensize(branchLen / 10)
        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()

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')
        t.circle(1)
        t.up()
        t.backward(a)
        t.right(90)
        t.backward(b)

def main():
    t = turtle.Turtle()
    w = turtle.Screen()
    t.hideturtle()
    getscreen().tracer(5,0)
    w.screensize(bg='wheat')
    t.left(90)
    t.up()
    t.backward(150)
    t.down()
    t.color('sienna')

    tree(60,t)
    petal(200,t)
    w.exitonclick()

main()