值更新时给另一字段赋值

import clr

clr.AddReference('Kingdee.BOS')

clr.AddReference('Kingdee.BOS.Core')

clr.AddReference('Kingdee.BOS.DataEntity')

from Kingdee.BOS.Util import *

from Kingdee.BOS import LocaleValue

from Kingdee.BOS.Core.Metadata import *

from Kingdee.BOS.Core.Bill.PlugIn import *

from Kingdee.BOS.Orm.DataEntity import *

from System import *

def DataChanged(e):

    if e.Key.Equals("FB