Post-processing the text of only letters and numbers for higher-order data is a much easier method of developing a useful annotation system with available open source systems.
要使用开源系统开发实用的注释系统，对只有字母和数字组成的文本进行后处理以获得更有条理的数据，这种方法更加简便。
The @Transactional annotation, part of the Spring Core package, specifies the transaction semantics of the annotated class or method.
作为 Spring 核心包一部分的 @Transactional 注释指定了注释的类或方法的事务语义。
The @Factory annotation attaches a method to the creation process of an outjected variable, specified in the value of the annotation, when that variable has no value bound to it.
@Factory 注释向已提取变量的创建过程 附加了一个方法，这是在注释的值中指定的，当该变量没有绑定任何值时就会使 用该方法。
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