Python绘图，圣诞树，花，爱心 | Turtle篇
Python基础语法 - 专栏链接
1.画圣诞树
import turtle
screen = turtle.Screen()
screen.setup(800,600)
circle = turtle.Turtle()
circle.shape('circle')
circle.color('red')
circle.speed('fastest')
circle.up()
square = turtle.Turtle()
square.shape('square')
square.color('green')
square.speed('fastest')
square.up()
circle.goto(0,280)
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()2.画樱花
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 = 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)
# 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='white') # 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)
w.exitonclick()3.画一箭穿心
from turtle import*
color ("black","red")
pensize(5)
begin_fill()
penup()
goto(50,50)
pendown()
right(45)
goto(100,0)
left(90)
fd(120)
circle(50,225)
penup()
goto(0,0)
pendown()
left(135)
fd(120)
circle(50,225)
seth(90)
circle(50,225)
fd(121)
end_fill()
left(56)
penup()
goto(-210,40)
pendown()
goto(0,80)
penup()
goto(160,110)
pendown()
goto(320,140)
done()4.画爱心
# -*- coding:utf-8 -*-
import turtle
import time
# 画心形圆弧
def hart_arc():
for i in range(200):
turtle.right(1)
turtle.forward(2)
def move_pen_position(x, y):
turtle.hideturtle() # 隐藏画笔（先）
turtle.up() # 提笔
turtle.goto(x, y) # 移动画笔到指定起始坐标（窗口中心为0,0）
turtle.down() # 下笔
turtle.showturtle() # 显示画笔
# 初始化
turtle.setup(width=800, height=500) # 窗口（画布）大小
turtle.color('red', 'pink') # 画笔颜色
turtle.pensize(2) # 画笔粗细
turtle.speed(0.5) # 描绘速度
# 初始化画笔起始坐标
move_pen_position(x=0,y=-180) # 移动画笔位置
turtle.left(140) # 向左旋转140度
turtle.begin_fill() # 标记背景填充位置
# 画心形直线（ 左下方 ）
turtle.forward(224) # 向前移动画笔，长度为224
# 画爱心圆弧
hart_arc() # 左侧圆弧
turtle.left(120) # 调整画笔角度
hart_arc() # 右侧圆弧
# 画心形直线（ 右下方 ）
turtle.forward(224)
turtle.end_fill() # 标记背景填充结束位置
# 点击窗口关闭程序
window = turtle.Screen()
window.exitonclick()5.画玫瑰花
import turtle
# 设置初始位置
turtle.penup()
turtle.left(90)
turtle.fd(200)
turtle.pendown()
turtle.right(90)
# 花蕊
turtle.fillcolor("red")
turtle.begin_fill()
turtle.circle(10,180)
turtle.circle(25,110)
turtle.left(50)
turtle.circle(60,45)
turtle.circle(20,170)
turtle.right(24)
turtle.fd(30)
turtle.left(10)
turtle.circle(30,110)
turtle.fd(20)
turtle.left(40)
turtle.circle(90,70)
turtle.circle(30,150)
turtle.right(30)
turtle.fd(15)
turtle.circle(80,90)
turtle.left(15)
turtle.fd(45)
turtle.right(165)
turtle.fd(20)
turtle.left(155)
turtle.circle(150,80)
turtle.left(50)
turtle.circle(150,90)
turtle.end_fill()
# 花瓣1
turtle.left(150)
turtle.circle(-90,70)
turtle.left(20)
turtle.circle(75,105)
turtle.setheading(60)
turtle.circle(80,98)
turtle.circle(-90,40)
# 花瓣2
turtle.left(180)
turtle.circle(90,40)
turtle.circle(-80,98)
turtle.setheading(-83)
# 叶子1
turtle.fd(30)
turtle.left(90)
turtle.fd(25)
turtle.left(45)
turtle.fillcolor("green")
turtle.begin_fill()
turtle.circle(-80,90)
turtle.right(90)
turtle.circle(-80,90)
turtle.end_fill()
turtle.right(135)
turtle.fd(60)
turtle.left(180)
turtle.fd(85)
turtle.left(90)
turtle.fd(80)
# 叶子2
turtle.right(90)
turtle.right(45)
turtle.fillcolor("green")
turtle.begin_fill()
turtle.circle(80,90)
turtle.left(90)
turtle.circle(80,90)
turtle.end_fill()
turtle.left(135)
turtle.fd(60)
turtle.left(180)
turtle.fd(60)
turtle.right(90)
turtle.circle(200,60)
# time.sleep(3)6.画太极
#引入turtle函数库
from turtle import *
#定义画半个太极图的函数，第一个参数radius是大圆的半径，
#color1，color2分别是两种填充颜色，对应图形中的黑白填充
def draw(radius, color1,color2):
#设置画笔粗细
width(3)
#设置画笔颜色和填充颜色
color("black",color1)
#准备开始填充图形
begin_fill()
#首先画一个半径为radius/2，弧度为180的半圆，画的是红线所示半圆
circle(radius/2,180)
#画一个半径为radius，弧度为180的半圆，画的是黄线所示半圆
circle(radius,180)
#将画笔方向旋转180度
left(180)
#画一个半径为radius/2，弧度为180的半圆，此时半径值为负，
#圆心在画笔的右边，画的是绿线所示半圆
circle(-radius/2,180)
#结束填充
end_fill()
#画笔向左旋转90度，正好指向画板上方
left(90)
#抬起画笔，再运动时不会留下痕迹
up()
#向前移动radius*0.35，这样小圆边线距离大圆边线上下各radius*0.35，
#小圆的半径就为radius*0.15
forward(radius*0.35)
#画笔向右旋转90度，指向画板右侧
right(90)
#放下画笔
down()
color(color2,color2)
#开始画内嵌小圆，如蓝线所示
begin_fill()
circle(radius*0.15)
end_fill()
#旋转画笔90度，指向画板上方
left(90)
up()
#后退radius*0.35
backward(radius*0.35)
down()
#旋转画笔90度，指向画板左方
left(90)
#定义主函数
def main():
#设置窗口或者画板大小
setup(500,500)
#绘制黑色一半，白色内圆
draw(200,"black","white")
#绘制白色一半，黑色内圆
draw(200,"white","black")
#隐藏画笔
ht()
main()
秒变大牛，就是这么简单~
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