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在机身内部寸土寸金的当下，S-Pen 近两年的处境确实有些尴尬：先是失去了蓝牙，如今又告别了左右反插。在实用主义和外观设计的双重挤压下，这根超大杯的标志性触控笔，似乎不可避免地一直在妥协。
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Throughout the development of our microservices, we heavily leveraged dependency injection. As part of a .NET web application's startup process, you register the individual types that should be part of the inversion of control (IoC) container. Individual classes inject their dependencies as interfaces in their constructor arguments. This allows different concrete implementations to be used depending on the context. For example, an interface for a telemetry client may be utilized throughout the codebase. The concrete implementation in the live-service sends actual telemetry data to a remote endpoint. A mocked implementation is used in unit tests to validate the correct event would be sent at the appropriate time.