常見例句雙語(yǔ)例句To begin we create an abstract base class which represents the service we want to expose.首先，我要?jiǎng)?chuàng)建一個(gè)抽象基類，用於表示我們要公開的服務(wù)。If an abstract base class is not appropriate, Interfaces can be chained together to build up functionality.如果不適用於抽象基類，可以將接口串聯(lián)在一起，以搆建其功能。The customer class can be an abstract base class for a family of different customer types, such as private or business customer.客戶類可以是用於許多不同客戶類型的抽象基類，比如說私有客戶或業(yè)務(wù)客戶。 返回 abstract base class