The server program would need to do program initiation and termination housekeeping once per item 服務器程序需要對每一個單元都進行程序初始化以及相關的回收工作。
What makes a service desirable is that a service can be invoked many times without going through batch scheduling , program initiation , and later termination housekeeping over and over again 需要服務的原因在于服務可以多次調用,而不需要反復進行批處理調度,程序初始化,以及稍后的終止回收工作。