Depending on your container, creating a data source might involve adding a data source definition to a property or configuration file, or might be done through a GUI administration tool.
As a quick summary, a di container is a tool you can use to support building highly decoupled software.
作为一个快速的摘要，依赖注入容器就是一个用于构建高度松耦合的软件的工具。
3
When reordering a message set into a combined fragment, the tool first checks whether the target combined fragment is a valid container of the message set.