如何用程序代码找到最新成交单的委托来源

OnReady(){ Integer i; For i = 0 To A_AccountCount - 1 { Print(A_AccountID(i) + \",A_GetOrderIDs:\"); //获取报单数组 Array<Integer> ids; Bool ret = A_GetOrderIDs(ids, \"\", i); Integer j; for j = 0 to GetArraySize(ids)-1 { order ords; A_GetOrder(ids[j], ords); Print(\"ids[\" + Text(j) + \"]=\" + Text(ids[j]) + \", CreateSource=\" + ords.createSource); } }}