IoC (Inversion of Control) control inversion gives the framework the right to create objects. It is an important feature of the framework. It is not a specialized term for object-oriented programming, including Dependency Injection (DI) and Dependency Lookup. Its role is to reduce coupling (dependencies) between programs.
The principle can refer to:
use factory mode decoupling
use factory mode decoupling singleton version
The concept and function of IoC
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Origin blog.csdn.net/qq_41242680/article/details/105583243
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