金蝶云星空Python获取单据体并赋值基础资料和多类别基础资料

import clr
clr.AddReference("Kingdee.BOS.Core")
clr.AddReference("Kingdee.BOS")
clr.AddReference('Kingdee.BOS.App')
#添加对cloud插件开发的常用组件的引用
from Kingdee.BOS.Core.Bill.PlugIn import *
from Kingdee.BOS.Core.Bill.PlugIn.Args import *
from Kingdee.BOS.Core.DynamicForm.PlugIn.Args import *
from Kingdee.BOS.App.Data import *
def OnLoad(e):
 status = this.Model.GetValue("FDocumentStatus")
 if(status == "Z"):
   billObj = this.View.Model.DataObject
   entity = billObj["DetailEntity"]
   for obj in entity:
     obj['StockID_Id']=0
     obj['StockID']=None 
     this.Model.SetValue('FOwnerID', "",obj['Seq']-1)
     this.Model.SetValue('FOwnerTypeId', "",obj['Seq']-1)
   entity = billObj["SUMEntity"]
   for obj in entity:

     #基础资料赋值
     obj['StockID_Id']=0
     obj['StockID']=None 

     #多类别基础资料赋值
     this.Model.SetValue('FSumOwnerId', "",obj['Seq']-1)
     this.Model.SetValue('FSumOwnerTypeId', "",obj['Seq']-1)