python批处理系列代码-栅格数据按掩膜处理

import arcpynfrom arcpy import envnfrom arcpy.sa import *nimport osnimport os.pathnimport sysnn#arcpy.env.workspace = “D:\\TIF\\IMERGD\\Y”nrootdir = ‘D:\\TIF\\IMERGD\\Y’nnfilenames