save project

diy1.py

@@ -3,12 +3,13 @@ import turtle
 
 pen=turtle.Pen()
 pen.speed(100)
-
-colors=["red","orange","yellow",""]
+b=turtle.Screen()
+b.bgcolor("sky blue")
+colors=["red","orange","yellow","green"]
 for i in range(1,700):
-    pen.forward()
+    pen.forward(i)
+    pen.pencolor(colors[i%4])
     pen.right(91)
-pen.hideturtle()
 turtle.done()