Added and optimized the get_gbk_files method, and the gbk_upload method.
Added and optimized the get_gbk_files method, and the gbk_upload method.

datasnakes/Datasnakes-Scripts,datasnakes/Datasnakes-Scripts,datasnakes/Datasnakes-Scripts,datasnakes/Datasnakes-Scripts,datasnakes/Datasnakes-Scripts,datasnakes/Datasnakes-Scripts