在本教程中，您将深入了解Spring MVC的详细信息并扩展电话本样例应用程序使其具有更多功能——特别是修改和删除功能。

In this tutorial you'll plunge into the details of Spring MVC and extend your Phonebook sample application to have more functionality — specifically the ability to modify and delete.

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主要介绍一种电话拨号控制器的设计、制作、调试、使用方法及以后的扩展功能。

This paper introduces mainly the design, manufacture, debugging procedure, operational method and future expanded function of a telephone dialing controller.

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同时，随着固网支付电话平台内容的不断丰富，固网支付电话终端可实现的业务功能还将不断延展和扩展。

At the same time, as the fixed-line phone platform content evolves, fixed-line telephone terminal enables business functions will be constantly extended and expanded.

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