第一次作业

import turtle

turtle.setup(200,200,200,200)

turtle.penup()

turtle.pendown()

turtle.pensize(10)

for i in range(3):

    turtle.seth(i*120)

    turtle.fd(200)

 

 

import turtle

turtle.setup(200,200,200,200)

turtle.penup()

turtle.pendown()

turtle.pensize(10)

for i in range(3):

    turtle.seth(i*120)

    turtle.fd(200)   

turtle.penup()

turtle.fd(200)

turtle.pendown()

for i in range(3):

    turtle.seth(i*120)

    turtle.fd(200)

turtle.penup()

turtle.seth(0)

turtle.fd(200)

turtle.pendown()

for i in range(3):

    turtle.seth(i*120)

    turtle.fd(200)

 

 

 

import turtle

turtle.setup(200,200,200,200)

turtle.penup()

turtle.pendown()

turtle.pensize(10)

for i in range(4):

    turtle.seth(i*90)

    turtle.penup()

    turtle.fd(30)

    turtle.pendown()

    turtle.fd(140)

    turtle.penup()

    turtle.fd(30)

    turtle.pendown()

   

 

<span style="font-size:24px;">import turtle
def drawSnake(rad,angle,len,neckrad):
    for i inrange(len):
       turtle.circle(rad,angle)
       turtle.circle(-rad,angle)
   turtle.circle(rad,angle/2)
   turtle.fd(rad)
   turtle.circle(neckrad+1,180)
   turtle.fd(rad*2/3)
def main():
   turtle.setup(1300,800,0,0)
    pythonsize=30
   turtle.pensize(pythonsize)
   turtle.pencolor("blue")
   turtle.seth(-40)
   drawSnake(40,80,5,pythonsize/2)
main()</span>