When using dependency injection there is usually a configuration mechanism or architecture for deciding which implementation gets injected into an object.
当使用依赖注入时，通常会有一个配置机制或是某个特定架构，以决定哪个实现将被注入到一个对象中。
When using dependency injection there is usually a configuration mechanism or architecture for deciding which implementation gets injected into an object.
当使用依赖注入时，通常会有一个配置机制或是某个特定架构，以决定哪个实现将被注入到一个对象中。
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