配置测试的第二种方法(更常用)是对测试组件使用API。

The second (more general) way to configure tests is to use APIs on the test component.

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为使这个方法更加简单，将对变量的访问封装在第二个函数中，该函数使用配置键名及一个缺省值作为参数，如下所示。

To make this method a little easier, I wrap the access to the variable in a second function that takes a configuration key name and a default value, as shown below.

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第一种方法主要用于开发和测试，第二种和第三种方法为配置、管理和更新适配器提供了更多的灵活性。

The first approach is used primarily for development and testing, while the second and third approaches provide more flexibility for configuring, managing, and updating adapters.

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