The First time value is the time taken for constructing the first reflection replacement class, which includes the time to load and initialize the classes in the framework code.

第一个时间值是构建第一个反射替代类所花费的时间，这个时间包括装载和初始化框架代码中的类的时间。

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Note that class loading can be performed in a lazy manner and therefore some parts of the class loading process may be done on first use of the class rather than at load time.

请注意可以用惰性方式执行类装入，所以类装入过程的某些部分可能在第一次使用类的时候才执行，而不是在装入时执行。

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When there is a hierarchy of class loaders, the root class loader, which is the bootstrap class loader, attempts to load the class first.

当类加载器存在一个层次结构时，根类加载器(即引导类加载器)将首先尝试加载类。

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