Doris'project

code format="python" import turtle alex = turtle.Turtle i = 110 alex.penup alex.goto(0,-100) alex.pendown alex.speed(20) step=0 while i > 10: step += 1 i -= 10 if step % 2 == 1: alex.fillcolor('red') else: alex.fillcolor('white') alex.begin_fill alex.circle(i) alex.write(step) alex.end_fill alex.penup alex.left(90) alex.forward(10) alex.pendown alex.right(90) code