In ACF/VTAM, an application program exit routine whose address has been placed in the EXIT field of a request parameter list. ACF/VTAM invokes the routine to in dicate that an asynchronous request has been completed.; 在虛擬遠(yuǎn)程通信存取方法高級(jí)通信操作程序(ACF/VTAM)中，一種應(yīng)用程序的出口例程，其地址已存放在請(qǐng)求參數(shù)表的EX IT(出口)字段中。ACF/VTAM調(diào)用此例程表明一個(gè)非同步請(qǐng)求已完成。參閱exit routine。