save project

新的时代顶顶顶.py

-import turtle
+import turtle
 import turtle
 pen=turtle.Pen()
-for i in range(1,400,2):
+ss=turtle.Screen()
+ss.bgcolor("black")
+c=["red","blue","orange","pink"]
+for i in range(1,400,1):
+    pen.color(c[i%4])
     pen.forward(i)
     pen.right(91)
-    i+=1
 pen.hideturtle()
 pen.done()
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