auto save

shape.py

-import turtle
-
-pen=turtle.Pen()
-pen.shape("turtle")
-pen.forward(100)
-turtle.done()

star.py

-import turtle
-请使用turtle模块画出五角星
-pen=turtle.Pen()
-for i in range(5)
-    pen.forward(200)
-    pen.left(144)
-turtle.done()
-pen.hideturtle()
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