python 来自https://developers.google.com/appengine/docs/python/datastore/transactions

Posted 2021-05-10

from google.appengine.ext import dbxg_on = db.create_transaction_options(xg=True)def my_txn():    x = MyModel(a=3)    x.put()    y = MyModel(a=7)    y.put()db.run_in_transaction_options(xg_on, my_txn)