For instance, if I type rake deploy, rake would call the dependent tasks I've set up, such as compilation, running tests, and so on.

例如，如果输入rake deploy, rake将调用之前设置的依赖任务，例如编译，运行测试等等。

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You can also use platform defines to control platform dependent code compilation.

你也可以使用平台定义来控制与平台相关的代码编译。

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The scope of a conditional compilation constant is dependent on the way it is set.

条件式编译常数的范围取决于它的设定方式。

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