用 .NET Framework 4.7.2 手搓一个 IoC 容器

Dependency Injection is often treated as a black box in modern .NET development, where services are magically wired together without understanding the underlying mechanics. This exploration demystifies the Inversion of Control container by stripping away the complexity of established frameworks like Autofac or Microsoft.Extensions.DependencyInjection to reveal the core logic that powers them. At its heart, an IoC container performs three fundamental operations: registration, resolution, and lifecycle management. Registration maps interfaces to concrete implementations, while resolution recursively traverses dependency graphs, instantiating objects through reflection until all leaf nodes are resolved. The true magic lies in this recursive process, where the container automatically fulfills constructor arguments by resolving their own dependencies, creating a seamless chain of object creation that eliminates manual instantiation code. Lifecycle management adds another layer of control, ...--AI Generated