关于模块的一个好处就是可以将其功能附加到任何已有的ruby类，并且可以根据您的需要添加，没有数量限制。
The nice thing about a module is that you can attach its functionality to any existing Ruby class, and you can attach as many as you want.
Informix Growth Edition为您提供附加的数据库功能，包括任何类型的没有限制的ER和网格集群节点，以便在集群内发送或接收数据更新。
Informix Growth Edition gives you additional database functionality, including unlimited er and grid cluster nodes of any type to send or receive data updates within the cluster.
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