# -*- coding: utf-8 -*-
import arcpy
wks = r'C:\Users\HP\Desktop\HB_Qt'
arcpy.env.workspace = wks
print u"**********开始**********"
rasters = arcpy.ListRasters("*", "tif")
for raster in rasters:
newName = "new_" + raster
dataType = "RasterDataset"
arcpy.Rename_management(raster, newName, dataType)
print raster + "\n" + newName
print u"**********结束**********"