python -- 叠加等边三角形

import turtle

turtle.right(60)
turtle.forward(200)
turtle.right(120)
turtle.forward(200)
turtle.right(120)
turtle.forward(200)
turtle.penup()
turtle.forward(-100)
turtle.pendown()
turtle.right(60)
turtle.forward(100)
turtle.right(120)
turtle.forward(100)
turtle.right(120)
turtle.forward(100)
turtle.done()