save project

diy1.py

@@ -5,7 +5,11 @@
 import turtle
 pen = turtle.Pen()
 pen.speed(1000)
+screen=turtle.Screen()
+screen.bgcolor("black")
+color=["cyan","orange","blue","red"]
 for i in range(1,300):
+    pen.pencolor(color[i%4])
     pen.forward(i)
     pen.left(91)
 pen.hideturtle()