什么是API接口？给大家举例说明

       Api接口也就是所谓的应用程序接口，api接口的全称是Application Program Interface，通过API接口可以实现计算机软件之间的相互通信，开发人员可以通过API接口程序开发应用程序，可以减少编写无用程序，减轻编程任务，API 同时也是一种中间件，为各种不同平台提供数据共享。根据单个或分布式平台上不同软件应用程序间的数据共享性能。

　　举个例子来说明，就是当你在购物平台上买东西付款之后，商家选择某一快递公司发货，然后你就可以在购物平台上面查看快递的实时进程。购物平台和快递公司都是独立的公司，为什么能够在购物平台看到快递公司的信息呢，这里就是用到了API，当你在查看快递信息的时候，购物平台的内部系统也开始运作，购物平台通过快递公司提供的API接口，可以实时调取快递信息到网站上。除此之外，你还可以在搜索引擎上输入快递的订单号进行查询，只要是通过快递公司的允许别的公司都可以通过快递公司的API接口调取到快递信息。

　　而API接口平台大多都是用来开发新的应用软件的，这样可以有效的避免因为程序员编写的接口有问题，导致拖延时间，无法在应有的时间内完成软件的编写，但是在有了api接口程序之后，能够帮助开发者提升开发效率，可以大大的缓解这种情况的发生，可以让开发人员更加有效的完成软件的开发工作。能以一种简单的方式实现App里的某个服务已经成为开发者们最好的选择。

       我们以淘宝API接口为例，下图为测试页面展示：

      通过接口可以快速的获取我们想要的信息。

      测试地址：https://console.open.onebound.cn/console/index.php?i=hardy 注册可以赠送测试，亲测有效

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