如何使用arcpy批量将字段名从大写转换为小写

import arcpyn#Set workspacenarcpy.env.workspace = r’E:\testpy\examples\symbology\ToolData\Input.gdb\PlanA_Roads’nfc = r’E:\testpy\examples\symbology\ToolData\Input.gdb\PlanA_Roads11’nfieldList = arcpy…