save project

擦拭规划v。py → thr.py

-import turtle
 import turtle
 pen=turtle.Pen()
-for i in range(1,10000000000000):
+screen=turtle.Screen()
+screen.bgcolor("black")
+colors=["red","yellow","green","orange"]
+for i in range(1,300):
     pen.forward(i)
     pen.right(91)
 turtle.done()
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