Python实现使用turtle绘制圣诞树

绝地灬酷狼 2023-10-18 13:04 108阅读 0赞

## 简单的绘制圣诞树 ##

新建tree1.py或者直接输入下面代码运行

#声明树的高度
    height = 5
    #树的雪花数，初始为1
    stars = 1
    #以数的高度作为循环次数
    
    for i in range(height):
        print((' ' * (height - i)) + ('*' * stars))
        stars += 2
    #输出树干
    print((' ' * height) + '|')

![Image 1][]

## 使用turtle绘制简单圣诞树 ##

新建tree2py，输入以下代码

#导入turtle库
    import turtle
    #设置屏幕大小
    screen = turtle.Screen()
    screen.setup(800,600)
    #获取画笔并设置一些属性：圆形、红色、快
    circle = turtle.Turtle()
    circle.shape('circle')
    circle.color('red')
    circle.speed('fastest')
    #抬起画笔
    circle.up()
    #重新获取画笔
    square = turtle.Turtle()
    #重新设置画笔属性：四方形、绿色、快
    square.shape('square')
    square.color('green')
    square.speed('fastest')
    #重新抬起画笔
    square.up()
    #跳到指定坐标位置
    circle.goto(0,280)
    #复制当前图形
    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()

运行：

![Image 1][]![20181225110246399.gif][]

## 使用Turtle绘制复杂圣诞树 ##

新建tree3.py，输入以下代码

#导入所依赖的库
    from turtle import *
    import random
    import time
     
    n = 80.0
    #设置速度快
    speed("fastest")
    #背景颜色 海贝壳色，偏粉色
    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)

运行：

![20181225110316428.gif][]

## 源码下载 ##

[https://download.csdn.net/download/badao\_liumang\_qizhi/10874465][https_download.csdn.net_download_badao_liumang_qizhi_10874465]

[Image 1]: 
[20181225110246399.gif]: https://img-blog.csdnimg.cn/20181225110246399.gif
[20181225110316428.gif]: https://img-blog.csdnimg.cn/20181225110316428.gif
[https_download.csdn.net_download_badao_liumang_qizhi_10874465]: https://download.csdn.net/download/badao_liumang_qizhi/10874465