one hour in linux mysql> ) from listorders; +----------+ | count() | +----------+ | | +----------+ row in set (0.00 sec) mysql> ) from listorderitems ; +----------+ | count() | +----------+ | | +----------+ row in set (0.00 sec) mysql> ) from lis…
我们从API的功能.分类.设计.实现.用户来看什么是API. API是应用程序组件之间通信的接口 --wiki:Application Programming Interface In computer programming, an application programming interface (API) is a set of subroutine definitions, protocols, and tools for building application software.…
Web API design 28 minutes to read Most modern web applications expose APIs that clients can use to interact with the application. A well-designed web API should aim to support: Platform independence. Any client should be able to call the API, regardl…
一.桥接模式简介(Brief Introduction) 桥接模式(Bridge Pattern),将抽象部分与它的实现部分分离,使的抽象和实现都可以独立地变化. Decouple an abstraction from its implementation so that the two can vary independently.. 什么是聚合/组合: 聚合(Aggregation),当对象A被加入到对象B中,成为对象B的组成部分时,对象B和对象A之间为聚合关系.聚合是关联关系的一种,是较…
定 义:将抽象部分和它的实现部分分离,使它们可以独立的变化. 结构图: 实现类: //Implementor(实现)类 public abstract class Implementor { public abstract void Operation(); } /// <summary> /// 具体实现类A /// </summary> public class ConcreteImplementorA : Implementor { public override voi…