auto save

star.py

-"""
-请使用turtle模块画出五角星
+
 import turtle
+sb = turtle.Pen()
 for i in range(5):
-    pen.forward(200)
-    pen.right(144)
-pen hideturtie() 
+    sb.forward(200)
+    sb.right(144)
+sb.hideturtie() 
 turtle.done()   
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