指定的图层添加属性字段

# -*- coding:UTF-8 -*-
import arcpy
featureClass = r"E:\WorkData\new.gdb\XDSX"
jwhList = ["JWHBM", "Double", "", "居委会编码"]
qxList = ["所属区县", "Text", 10, "所属区县"]
jdbList = ["所属街道办", "Text", 50, "所属街道办"]
try:
    if arcpy.Exists(featureClass):
        # AddField_management (in_table, field_name, field_type, {field_precision}, {field_scale},
        #                      {field_length}, {field_alias}, {field_is_nullable}, {field_is_required},
        #                      {field_domain})
        arcpy.AddField_management(featureClass, qxList[0], qxList[1], "",  "", qxList[2], qxList[3])
        arcpy.AddField_management(featureClass, jdbList[0], jdbList[1], "",  "", jdbList[2], jdbList[3])
        print "OK"
    else:
        print "feature is not exist"
except Exception as e:
    print "Failed"
    print e.message