auto save

diy1.py

@@ -4,10 +4,14 @@
 """
 import turtle
 pen= turtle.Pen()
+s = turtle.Screen()
+s.bgcolor("black")
 pen.speed(0)
+colors = ["red","green","orange","yellow"]
 for i in range(1,300):
+    pen.pencolor(colors[i%4])
     pen.forward(i)
     pen.right(91)
-    
+
 pen.hideturtle()
 turtle.done()
\ No newline at end of file