/// <summary>
/// 修改付款账号
/// </summary>
/// <param name="orderId"></param>
/// <param name="payAccount"></param>
/// <param name="payer"></param>
/// <returns></returns>
public static bool UpdatePayAccount(decimal orderId, string payAccount, string payer)
{
IOnlineOrder factory = OnlineOrderFactory.GetFactory();
return(factory.UpdatePayAccount(orderId, payAccount, payer));
}