实验8 python库应用编程与体验

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#task3
from turtle import *
def square(size=50,rgb='orange'):
    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()
if __name__=='__main__':
    main()

#task4
from turtle import *
setup(800,600)
pencolor('pink')

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

    right(360/n)

hideturtle()
done()

#task5
from turtle import *
setup(800,600)
bgcolor('black')
pencolor('white')
speed(0)
angle=0
size=2
n=8
for i in range(n):
    for j in range(5):
        fd(size)
        angle+=72
        seth(angle)
        size+=5
hideturtle()
done()

#task6
from turtle import *
from random import random
def moveto(x,y):
    penup()
    goto(x,y)
    pendown()
setup(800, 600)
def rect(wide,height,rgb='red'):
    rgb = tuple(random() for i in range(3))
    color(rgb)
    for i in range(2):
        begin_fill()
        fd(wide)
        left(90)
        fd(height)
        end_fill()
        left(90)
for i in range(20):
    moveto((9 - i) * 10, 0)
    rect(10, 20)
hideturtle()
done()

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