desc = arcpy.Describe(r"C:\Users\dell\Documents\ArcGIS\ddd.shp") 是ShapeFile
desc = arcpy.Describe(r"r"C:\Users\dell\Documents\ArcGIS\default.gdb\ds\dltb"") 是FeatureClass
desc = arcpy.Describe(r"C:\Users\dell\Documents\ArcGIS\ddd.shp") 是ShapeFile
desc = arcpy.Describe(r"r"C:\Users\dell\Documents\ArcGIS\default.gdb\ds\dltb"") 是FeatureClass