save project

diy1.py

 import turtle
 import turtle
 pen = turtle.Pen()
 pen = turtle.Pen()
-screen = turtle.Screen()
-screen.bgcolor("light blue")
-yyx=["white","green","red","purple"]
 zxw=1
 zxw=1
 pen.speed(800)
 pen.speed(800)
-for i in range(500):
-    pen.pencolor(yyx[i%4])
+for i in range(1,500):
     pen.forward(i)
     pen.forward(i)
     pen.right(91)
     pen.right(91)
 pen.hideturtle()
 pen.hideturtle()