save project

diy1.py

@@ -3,10 +3,10 @@ pen = turtle.Pen()
 screen.bgcolor("black")
 screen.bgcolor("black")
 yanhaochen = ['red','orange','black','yellow']
 yanhaochen = ['red','orange','black','yellow']
 screen = turtle.Screen()
 screen = turtle.Screen()
-
 for i in range(1,300):
 for i in range(1,300):
     pen.forward(yanhaochen[i%4])
     pen.forward(yanhaochen[i%4])
     pen.right(91)
     pen.right(91)
+    pen.forward(i)
 tuple.hidetutle()
 tuple.hidetutle()
 tuple.done()
 tuple.done()