Python——画一棵漂亮的樱花树（不同种樱花+玫瑰+圣诞树喔）(转)

来自：https://blog.csdn.net/weixin_43943977/article/details/102691392
import turtle as T
import random
import time

# 画樱花的躯干(60,t)
def Tree(branch, t):
    time.sleep(0.0005)
    if branch > 3:
        if 8 <= branch <= 12:
            if random.randint(0, 2) == 0:
                t.color('snow')  # 白
            else:
                t.color('lightcoral')  # 淡珊瑚色
            t.pensize(branch / 3)
        elif branch < 8:
            if random.randint(0, 1) == 0:
                t.color('snow')
            else:
                t.color('lightcoral')  # 淡珊瑚色
            t.pensize(branch / 2)
        else:
            t.color('sienna')  # 赭(zhě)色
            t.pensize(branch / 10)  # 6
        t.forward(branch)
        a = 1.5 * random.random()
        t.right(20 * a)
        b = 1.5 * random.random()
        Tree(branch - 10 * b, t)
        t.left(40 * a)
        Tree(branch - 10 * b, t)
        t.right(20 * a)
        t.up()
        t.backward(branch)
        t.down()

# 掉落的花瓣
def Petal(m, t):
    for i in range(m):
        a = 300 - 500 * 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)

# 绘图区域
t = T.Turtle()
# 画布大小
w = T.Screen()
t.hideturtle()  # 隐藏画笔
t.getscreen().tracer(5, 0)
w.screensize(bg='wheat')  # wheat小麦
t.left(90)
t.up()
t.backward(150)
t.down()
t.color('sienna')

# 画樱花的躯干
Tree(60, t)
# 掉落的花瓣
Petal(200, t)
t.color("blue")
#t.left(200,0)
t.up()
t.goto(-200,100)
t.down()
t.write("亲爱的，我什么时候可以和你一起看樱花？",  font = ("Times", 20,"bold"))


w.exitonclick()

https://blog.csdn.net/weixin_43943977/article/details/102691392

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from turtle import * from random import * from math import *   def tree(n,l):     pd()#下笔     #阴影效果     t = cos(radians(heading()+45))/8+0.25     pencolor(t,t,t)     pensize(n/3)     forward(l)#画树枝       if n>0:         b = random()*15+10 #右分支偏转角度         c = random()*15+10 #左分支偏转角度         d = l*(random()*0.25+0.7) #下一个分支的长度         #右转一定角度,画右分支         right(b)         tree(n-1,d)         #左转一定角度，画左分支         left(b+c)         tree(n-1,d)         #转回来         right(c)     else:         #画叶子         right(90)         n=cos(radians(heading()-45))/4+0.5         pencolor(n,n*0.8,n*0.8)         circle(3)         left(90)         #添加0.3倍的飘落叶子         if(random()>0.7):             pu()             #飘落             t = heading()             an = -40 +random()*40             setheading(an)             dis = int(800*random()*0.5 + 400*random()*0.3 + 200*random()*0.2)             forward(dis)             setheading(t)             #画叶子             pd()             right(90)             n = cos(radians(heading()-45))/4+0.5             pencolor(n*0.5+0.5,0.4+n*0.4,0.4+n*0.4)             circle(2)             left(90)             pu()             #返回             t=heading()             setheading(an)             backward(dis)             setheading(t)     pu()     backward(l)#退回   bgcolor(0.5,0.5,0.5)#背景色 ht()#隐藏turtle speed(0)#速度 1-10渐进，0 最快 tracer(0,0) pu()#抬笔 backward(100) left(90)#左转90度 pu()#抬笔 backward(300)#后退300 tree(12,100)#递归7层 color("red") #t.left(200,0) up() goto(-200,100) down() write("亲爱的，我什么时候可以和你一起看樱花？",  font = ("Times", 20,"bold")) done()