They create new cache files if these files have not been previously created.

如果之前尚未建立这些档案，则方法会建立新的快取档案。

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To rectify this, you can, at any time, create a static cache rule that enables you to match a particular URL pattern with a new (and probably larger) last-modified factor.

为了修正这种情况，您可以在任何时候创建一条静态缓存规则(匹配某种特殊的URL模式，以及较大的“最后修改”系数)。

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The TracerFactory is a generalized factory class used to create a new ITracer instance based on the configuration properties passed or to reference a created ITracer from cache.

TracerFactory是一个普通的工厂类，用于根据传递的配置属性创建新itracer实例，或者从缓存中引用已创建的ITracer。

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