第一次Python作业

#叠加等边三角形.py
import turtle
turtle.penup()
turtle.fd(-50)
turtle.pendown()
turtle.pensize(6)
turtle.pencolor("black")
turtle.seth(60)
turtle.fd(300/2)
for i in range(2):
    turtle.right(120)
    turtle.fd(300)
turtle.right(120)
turtle.fd(300/2)
turtle.right(60)
turtle.fd(300/2)
for i in range(2):
    turtle.right(120)
    turtle.fd(300/2)



#正方形螺旋线.py
import turtle
turtle.setup(600,500,200,200)
turtle.penup()
turtle.fd(-220)
turtle.pendown()
turtle.pensize(5)
turtle.pencolor("green")
turtle.seth(60)
turtle.fd(400*2/3)
for i in range(2):
    turtle.right(120)
    turtle.fd(400)
turtle.right(120)
turtle.fd(400/3)
turtle.left(60)
turtle.fd(400/3)
for i in range(2):
    turtle.right(120)
    turtle.fd(400)
turtle.right(120)
turtle.fd(400*2/3)


#无边正方形.py
import turtle
turtle.setup(600,400,200,200)
turtle.pensize(5)
turtle.pencolor("purple")
turtle.pendown()
turtle.fd(80)
turtle.penup()
turtle.seth(90)
turtle.fd(10)
turtle.pendown()
turtle.fd(80)
turtle.left(90)
turtle.penup()
turtle.fd(16)
turtle.pendown()
turtle.fd(60)
turtle.penup()
turtle.left(90)
turtle.fd(10)
turtle.pendown()
turtle.fd(70)



#新蝰蛇.py
import turtle
turtle.setup(600,400,200,200)
turtle.pensize(25)
turtle.pencolor("purple")
turtle.penup()
turtle.fd(-250)
turtle.pendown()
turtle.seth(-40)
for i in range(4):
        turtle.circle(40,80)
        turtle.circle(-40,80)
turtle.circle(40,40)
turtle.fd(40)
turtle.circle(16,180)
turtle.fd(40*2/3)