第一次作业

import turtle
for i in range(4):
    turtle.fd(50)
    turtle.penup()
    turtle.fd(20)
    turtle.left(90)
    turtle.fd(20)
    turtle.pendown()
    turtle.fd(50)
turtle.hideturtle()


import turtle
turtle.fd(100)
turtle.left(120)
turtle.fd(100)
turtle.left(120)
turtle.fd(50)
turtle.left(120)
turtle.fd(50)
turtle.right(120)
turtle.fd(50)
turtle.right(120)
turtle.fd(50)
turtle.left(120)
turtle.fd(50)
turtle.hideturtle()

import turtle
turtle.left(30)
turtle.fd(100)
turtle.right(120)
turtle.fd(150)
turtle.right(120)
turtle.fd(150)
turtle.right(120)
turtle.fd(50)
turtle.left(60)
turtle.fd(50)
turtle.right(120)
turtle.fd(150)
turtle.right(120)
turtle.fd(150)
turtle.right(120)
turtle.fd(100)
turtle.hideturtle()

import turtle
turtle.penup()
turtle.fd(-200)
turtle.pendown()
turtle.pensize(30)
turtle.pencolor("yellow")
turtle.seth(-40)
for i in range(4):
    turtle.circle(40,80)
    turtle.circle(-40,80)
turtle.circle(40,80/2)
turtle.fd(40)
turtle.circle(16,180)
turtle.fd(40*2/3)
turtle.hideturtle()