用python画一个圣诞树

可以使用Python中的turtle模块来画一个圣诞树。

下面是一段示例代码：

from turtle import *
from random import *
import math# 绘图方法
def Rightdraw(Range, Fd, Right):for i in range(Range):  # Range循环次数fd(Fd)  # 向前Fd个距离right(Right)  # 在当前行进方向再向右偏转Right度def Leftdraw(Range, Fd, Left):for i in range(Range):  # Range循环次数fd(Fd)  # 向前Fd个距离left(Left)  # 在当前行进方向再向右偏转Right度# 背景改为黑色
screensize(bg='black')# 重设海龟位置
def changeMypos(x, y, range=heading(), Fd=0):penup()goto(x, y)seth(range)fd(Fd)pendown()def drawBranch(x, y, size=1):changeMypos(x, y)Leftdraw(6, 3, 9)seth(0)Rightdraw(6, 3, 9)seth(0)fd(6)# 画五角星
def drawStar(x, y, Range, size):pensize(1)color("red", "yellow")begin_fill()changeMypos(x, y, Range)for i in range(5):  # 画五角星forward(10 * size)right(144)  # 五角星的角度forward(10 * size)left(72)  # 继续换角度end_fill()right(126)# 绘制雪花
def drawSnow():hideturtle()speed(0)pencolor("white")pensize(2)for i in range(80):  # 雪花数量changeMypos(randint(-248, 248), randint(-100, 248))petalNumber = 6  # 雪花花瓣数为6snowSize = int(randint(2, 10))for j in range(petalNumber):fd(snowSize)backward(snowSize)right(360 / petalNumber)# 圣诞袜子
def drawSock(x, y, range, size=1):# 绘制袜子的白边pensize(1)changeMypos(x, y, range)color("black", "white")begin_fill()fd(20 * size)circle(3 * size, 180)fd(20 * size)circle(3 * size, 180)end_fill()# 绘制袜子的下半部分color("white", "red")begin_fill()startx = x + 2 * size * math.cos(math.radians(range))starty = y + 2 * size * math.sin(math.radians(range))finalx = x + 18 * size * (math.cos(math.radians(range)))finaly = y + 18 * size * (math.sin(math.radians(range)))changeMypos(startx, starty, range - 90)fd(20 * size)  # 圆弧距离白边40seth(180 + range)fd(5 * size)  # 向袜子头延伸10circle(7 * size, 180)  # 袜子头处的半圆形fd(21 * size)  # 袜子宽42seth(90 + range)d = distance(finalx, finaly)  # 找到袜子底部与白边的距离fd(d)seth(range + 180)fd(16 * size)end_fill()# 圣诞帽
def drawHat(x, y, range, size=1):# 绘制帽白边pensize(1)changeMypos(x, y, range)color("white", "white")begin_fill()fd(20 * size)circle(-3 * size, 180)fd(20 * size)circle(-3 * size, 180)end_fill()# 绘制帽子上半部分color("white", "red")begin_fill()startx = x + 2 * size * math.cos(math.radians(range))starty = y + 2 * size * math.sin(math.radians(range))finalx = x + 18 * size * (math.cos(math.radians(range)))finaly = y + 18 * size * (math.sin(math.radians(range)))changeMypos(startx, starty, range + 90)Rightdraw(18, 2 * size, 7)seth(190)Leftdraw(9, 2 * size, 8)goto(finalx, finaly)goto(startx, starty)end_fill()# 绘制圣诞帽上的小球changeMypos(startx, starty, range + 90)Rightdraw(18, 2 * size, 7)begin_fill()color("white", "white")circle(-2.5 * size)end_fill()# 绘制彩带
def drawRibbon(x, y, range, size):begin_fill()color("red", "red")seth(range + 40)fd(15 * size * math.tan(math.radians(range + 40)))seth(range + 90)fd(20 / 3 * size)seth(range - 140)fd(15 * size * math.tan(math.radians(range + 40)))seth(range - 90)fd(20 / 3 * size)end_fill()# 圣诞糖果
def drawCandy(x, y, range, size):# 绘制糖体pensize(1)changeMypos(x, y, range)color("white", "white")begin_fill()startx = x + 2 * size * math.cos(math.radians(range))starty = y + 2 * size * math.sin(math.radians(range))finalx = x + 8 * size * (math.cos(math.radians(range)))finaly = y + 8 * size * (math.sin(math.radians(range)))changeMypos(startx, starty, range + 90, 40 * size)circle(-40 / 3 * size, 180)circle(-8 / 3 * size, 180)circle(22 / 3 * size, 180)goto(finalx, finaly)goto(startx, starty)end_fill()# 绘制下面三条彩带color("white")changeMypos(startx, starty, range + 90)fd(10 / 3 * size)drawRibbon(xcor(), ycor(), range, size)changeMypos(xcor(), ycor(), range + 90, 13.3 * size)drawRibbon(xcor(), ycor(), range, size)changeMypos(xcor(), ycor(), range + 90, 13.3 * size)drawRibbon(xcor(), ycor(), range, size)# 绘制弧线段的彩带changeMypos(startx, starty, range + 90, 40 * size)circle(-13.3 * size, 55)x1 = xcor()y1 = ycor()begin_fill()circle(-13.3 * size, 80)right(75)fd(6.3 * size)right(115)circle(7 * size, 85)goto(x1, y1)end_fill()setup(500, 500, startx=None, starty=None)
title("Merry Christmas")
speed(0)
pencolor("green")
pensize(10)
hideturtle()
changeMypos(0, 185, 0)# 树顶层
seth(-120)
Rightdraw(10, 12, 2)
changeMypos(0, 185, -60)
Leftdraw(10, 12, 2)
changeMypos(xcor(), ycor(), -150, 10)
# 第一层的波浪
for i in range(4):Rightdraw(5, 7, 15)seth(-150)penup()fd(2)pendown()
# 二层
changeMypos(-55, 70, -120)
Rightdraw(10, 8, 5)
changeMypos(50, 73, -60)
Leftdraw(10, 8, 5)
changeMypos(xcor(), ycor(), -120, 10)
seth(-145)
pendown()
# 第二层的波浪
for i in range(5):Rightdraw(5, 9, 15)seth(-152.5)penup()fd(3)pendown()
# 树三层
changeMypos(-100, 0, -120)
Rightdraw(10, 6.5, 4.5)
changeMypos(80, 0, -50)
Leftdraw(10, 6, 3)
changeMypos(xcor(), ycor(), -120, 10)
seth(-145)
# 第三次的波浪
for i in range(6):Rightdraw(5, 9, 15)seth(-152)penup()fd(3)pendown()
# 树四层
changeMypos(-120, -55, -130)
Rightdraw(7, 10, 4)
changeMypos(100, -55, -50)
Leftdraw(7, 10, 5)
changeMypos(xcor(), ycor(), -120, 10)
seth(-155)
# 第四层的波浪
for i in range(7):Rightdraw(5, 9, 13)seth(-155)penup()fd(3)pendown()
# 树根
changeMypos(-70, -120, -85)
Leftdraw(3, 8, 3)
changeMypos(70, -120, -95)
Rightdraw(3, 8, 3)
changeMypos(xcor(), ycor(), -170, 10)
Rightdraw(10, 12, 2)
# 画树枝
drawBranch(45, -80)
drawBranch(-70, -25)
drawBranch(-20, 40)# 添加挂件
drawHat(-25, 175, -10, 2.5)
drawCandy(-75, -50, -10, 1)
drawCandy(10, 40, -10, 1.2)
drawStar(110, -90, 80, 1)
drawStar(-120, -100, 50, 1)
drawStar(-90, -50, 20, 1)
drawStar(90, -25, 30, 1)
drawSock(10, -35, -10, 2)
drawSock(-40, 100, 10, 1)
drawStar(-20, 40, 30, 1)
drawStar(10, 120, 90, 1)# 打印祝福语
color("dark red", "red")  # 定义字体颜色
penup()
goto(0, -230)
write("Merry Christmas", align="center", font=("Comic Sans MS", 40, "bold"))  # 定义文字、位置、字体、大小# 调用下雪的函数
drawSnow()done()

运行上述代码后会在绘制好的圣诞树下面显示"Merry Christmas!"字样。