auto save

bug.py

-import turtle
+# 对字符串进行操作：需要先转换成列表，在对列表进行操作，之后再转换回字符串
+str = "这周末放假"
 
-pen = turtle.Pen()
+lists = list(str)
+lists.insert(5,"两天")
+strs = "".join(lists)
 
-pen.write("超人最帅",font=("",60,"normal"))
-
-pen.hideturtle()
-
-turtle.done()
\ No newline at end of file
+print(strs)
\ No newline at end of file