import?arcpy
import?string
from?arcpy.sa?import?*
??
try:
??raster?=?arcpy.GetParameterAsText（0）?
??clip_feat?=?arcpy.GetParameterAsText（1）?
??field?=?arcpy.GetParameterAsText（2）?
??outworkspace?=?arcpy.GetParameterAsText（3）?
????
???for?row?in?arcpy.Sea