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diy1.py

@@ -6,7 +6,9 @@ import turtle
 
 
 pen = turtle.Pen()
 pen = turtle.Pen()
 a=1
 a=1
+colors=["red","black","yellow","white"]
 for i in range(1,300):
 for i in range(1,300):
+    pen.pencolor(colors[i%4])
     pen.forward(a)
     pen.forward(a)
     pen.right(91)
     pen.right(91)
     a+=1
     a+=1