原始问题：
autolisp get—xdata
The GET-XDATA function is used to retrieve extended data from a DXF object. It takes the object name as its argument and returns a list of the extended data associated with that object.
autolisp get—xdata
The GET-XDATA function is used to retrieve extended data from a DXF object. It takes the object name as its argument and returns a list of the extended data associated with that object.
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