实验六

实验3

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()

 

 实验4

from turtle import *

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

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()

 

 

实验5

from turtle import *

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

angle = 0
size = 2

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

hideturtle()
done()

 

 

 实验6

from turtle import*
import random
speed(0)
setup(800,600)
n=0
penup()
goto(-200,0)
pendown()
for i in range(0,20):
rgb=tuple(random.random() for i in range(1,4))
color(rgb)
begin_fill()
goto(-180+n,0)
goto(-180+n,50)
goto(-200+n,50)
goto(-200+n,0)
end_fill()
goto(-180+n,0)
n+=20

hideturtle()
show()