This simple class lets you develop the GUI and later, with slight modification, test the GUI with the real JSON service after you develop the display logic.

这个简单的类让我们可以开发GUI；在开发显示逻辑之后，只需经过简单的修改，就可以用真正的JSON服务测试GUI。

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Also, administration tooling might allow addition, deletion, or modification of service metadata intended to impact the dynamic behavior of a solution.

此外，管理工具可能允许添加、删除或修改旨在影响解决方案动态行为的服务元数据。

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Service call request - a service call request mechanism enables modification of application data in response to events in a related application.

服务调用请求(Service Call Request)——一种服务调用请求机制，允许修改应用程序数据以响应相关的应用程序中的事件。

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The Internal Revenue Service, for instance, has yet to issue guidance on the tax treatment of mass modification.

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The alternative will be for publishers to find service providers (such as ourselves) who already have working subscription integration platforms that would only need little or no modification to be compatible with Apple.

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