实验6

from turtle import *

 # 绘制正方形
 # 参数size指定边长，rgb指定画笔颜色
 # 如果没有给参数，采用默认值
def square(size=50, rgb = 'blue'):
    pencolor(rgb)
    for i in range(4):
        fd(size)
        left(90)
 
def main():
    setup(800, 600)
    speed(0)

    for i in range(10):
        square(80)
        left(36)
 
    hideturtle()
    done()

if __name__ == '__main__':
    main()

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

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

    right(36)
hideturtle()
done()

from turtle import *

from turtle import *
from random import random
def main():
    setup(800, 600)
    speed(0)

    penup()
    goto(-200,0)
    pendown()
    for i in range(20):
        rgb = tuple(random() for i in range(3))
        color(rgb)
        begin_fill()
        fd(20)
        left(90)
        fd(40)
        left(90)
        fd(20)
        left(90)
        fd(40)
        left(90)
        fd(20)
        end_fill()
  
    hideturtle()
    done()

if __name__ == '__main__':
    main()

from turtle import *

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

angle = 0
size = 2

for i in range(8):
    for j in range(5):
        fd(size)
        angle += 72
        seth(angle)
        size += 5
hideturtle()
done()