save project

diy2.py

 import turtle
 import turtle
+sc=turtle.Screen()
+sc.bgcolor('bleck')
 Pen=turtle.Pen()
 Pen=turtle.Pen()
+c=['red','orange','yellow','green']
 for i in range(1,300):
 for i in range(1,300):
     Pen.forward(i)
     Pen.forward(i)
+    Pen.pencolor(c[i%4])
     Pen.right(91)
     Pen.right(91)
 pen.hideturtle()
 pen.hideturtle()
 turtle.done()    
 turtle.done()    
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