在本章，我们将向你演示控制器是如何实现的，以及你能够把控制器用来接收并生成输出的不同方法。
In this chapter, we will show you how controllers are implemented and the different ways that you can use controllers to receive and generate output.
2008年7月，爱达荷实验室和西门子在芝加哥旅游胜地海军码头召开的一次会议上联手就控制器的脆弱性进行了一次幻灯片演示。
In July 2008, the Idaho lab and Siemens teamed up on a PowerPoint presentation on the controller's vulnerabilities that was made to a conference in Chicago at Navy Pier, a top tourist attraction.
这段代码本应该放入控制器中，但是它演示了Ruby的表现力并且该表现力是让Ruby非常适合快速原型化和开发的原因之一。
This code could have been put in the controller, but it demonstrates the expressiveness of Ruby and that expressiveness is part of what makes Ruby so well suited to rapid prototyping and development.
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