实验六 turtle绘图与python库应用编程体验

'''task1_1.py'''
from turtle import *
def move(x,y):
    penup()
    goto(x,y)
    pendown()
def draw(n,size=100):
    for i in range(n):
        fd(size)
        left(360/n)
def main():
    pensize(2)
    pencolor('red')

    move(-200,0)
    draw(3)

    move(0,0)
    draw(4)

    move(200,0)
    draw(5)

    hideturtle()
    done()
main()

'''task1_2.py'''
from turtle import *
def moveto(x,y):
    penup()
    goto(x,y)
    pendown()
def main():
    pensize(2)
    pencolor('blue')

    moveto(-150,0)
    circle(50)

    moveto(0,0)
    circle(50,steps=4)

    moveto(150,0)
    circle(50,steps=5)

    moveto(300,0)
    circle(50,steps=6)

    hideturtle()
    done()
main()

'''task2_1.py'''
from turtle import *
def moveto(x,y):
    penup()
    goto(x,y)
    pendown()
def main():
    setup(800,600)

    radius=20
    offset=20

    for i in range(9):
        moveto(0,-radius)
        circle(radius)
        radius+=offset

    hideturtle()
    done()
main()

'''task2_2.py'''
from turtle import *
from random import random

def moveto(x,y):
    penup()
    goto(x,y)
    pendown()

def gen_color():
    return tuple((random() for i in range(3)))
def main():
    setup(800,600)

    radius=180
    offset=20

    for i in range(8):
        moveto(0,-radius)
        color(gen_color())

        begin_fill()
        circle(radius)
        end_fill()

        radius-=offset
    hideturtle()
    done()
main()

'''task3_1.py'''

from turtle import*

def square(size=50,rgb='orange'):
'''
:para:size:int
:para:c:str
'''

pencolor(rgb)
for i in range(4):
fd(size)
left(90)

def main():
setup(800,600)
speed(0)

n=10
for i in range(n):
square(80)
left(360/n)

hideturtle()
done()

main()

'''task3_2.py'''

from turtle import *
setup(800,600)
pencolor('pink')

n=10
for i in range(10):
for j in range(2):
circle(80,90)
left(90)

right(360/n)
hideturtle()
done()

'''task4.py'''
from turtle import *
setup(800,600)
bgcolor('black')
pencolor('white')
speed(0)

angle=0
size=2

n=4
count=50
for i in range(count):
    fd(size)
    angle+=360/n+1
    seth(angle)
    size+=5
hideturtle()
done()

from turtle import *
setup(800,600)
bgcolor('black')
pencolor('white')
speed(0)

angle=0
size=2

n=5
count=50
for i in range(count):
    fd(size)
    angle+=360/5
    seth(angle)
    size+=5
hideturtle()
done()

from turtle import *


def move(x,y):
    penup()
    goto(x,y)
    pendown()


def draw(n,a,size = 100):
    color(a)
    begin_fill()

    for i in range(n):
        fd(size)
        left(360/n)
    end_fill()


move(-100,-100)
draw(4,'black',200)
move(-100,0)
right(45)
draw(4,'red',100*(2)**0.5)


hideturtle()
done()

from turtle import *


pensize(2)
def move(x,y):
    penup()
    goto(x,y)
    pendown()

def quarter_round(r):
    pencolor('blue')
    move(0,r)
    circle(-r,90)

    for i in range(2):
        right(90)
        fd(r)
    home()

radius=40
offset=20
for i in range(5):
    quarter_round(radius)
    radius+=offset


hideturtle()
done()

from turtle import *

def move(x,y):
    penup()
    goto(x,y)
    pendown()

bgcolor('black')
color('yellow')
move(0,-100)
begin_fill()
circle(100)
end_fill()
color('black')
speed(0)
move(87,-51)
seth(60)
begin_fill()
circle(100,80)
home()
end_fill()
move(-30,60)
dot(30,'black')
move(-38,60)
dot(5,'white')

hideturtle()
done()