save project

diy1.py

@@ -4,8 +4,10 @@
 """
 """
 import turtle
 import turtle
 pen=turtle.Pen() 
 pen=turtle.Pen() 
-i=1
+screen=turtle.bgcolor("black")
+wwww=["red","orange","yellow","green"]
 for i in range(1,300):
 for i in range(1,300):
+    pen.color(wwww[i%4])
     pen.forward(i)
     pen.forward(i)
     pen.right(91)
     pen.right(91)
 pen.hideturtle()
 pen.hideturtle()