第一次作业

#2-5
from turtle import *
setup(650,600,200,200)
for i in range(3):
    fd(100)
    left(-120)
left(60)
fd(100)
for i in range(3):
    left(-120)
    fd(200)
#2-6
from turtle import *
setup(650,600,200,200)
for i in range(4):
    fd(100)
    penup()
    fd(50)
    left(90)
    fd(50)
    pendown()
#2-7
from turtle import *
setup(650,600,200,200)
right(30)
for i in range(3):
    fd(100)
    left(-120)
right(-30)
penup()
fd(60)
pendown()
left(-90)
for i in range(3):
    fd(100)
    left(-120)
#2-8
from turtle import *
speed("fastest")
for x in range(100):
    forward(2*x)
    left(90)
#2-9
from turtle import *
setup(700,600,200,200)
pensize(30)
pencolor("red")
penup()
fd(-250)
seth(-40)
pendown()
for i in range(4):
    circle(40,80)
    circle(-40,80) 
circle(40,40)
fd(40)
circle(40,180)
fd(80)