实验8

from turtle import *

def square(size=50, rgb='pink'):
    '''绘制正方形
    参数size指定边长
    参数rgb指定画笔颜色
    如果没有给参数，采用默认值
    '''
    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, 'blue')
        left(360/n)

    hideturtle()
    done()


if __name__ == '__main__':
    main()

from turtle import *

setup(800, 600)
pencolor('orange')

speed(0)
n = 10
for i in range(n):
    # 绘制一片花瓣
    for j in range(2):
        circle(80, 90)
        left(90)

    right(360/n)

hideturtle()
done()

from turtle import *

setup(800, 600)
bgcolor('black')
pencolor('white')
speed(0)

angle = 0
size = 2

n = 10
for i in range(n):
    for j in range(4):
        fd(size)
        angle += 72
        seth(angle)
        size += 5

hideturtle()
done()

from turtle import *
from random import randint
chang = eval(input())

kuan = eval(input())

colormode(255)
setup(800, 600)

def rect(a, b):
    for i in range(2):
        fd(a)
        left(90)
        fd(b)
        left(90)

penup()
goto(-250, 0)
pendown()
speed(0)
for i in range(20):
    r = randint(0, 255)
    g = randint(0, 255)
    b = randint(0, 255)
    color(r, g, b)
    fillcolor(r, g, b)
    begin_fill()
    rect(chang, kuan)
    end_fill()
    penup()
    goto(-250 + int(chang)*(i + 1), 0)
    pendown()

done()