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This article mainly explains the "example analysis of the explicit conversion of C++". The content of the explanation in the article is simple and clear, and it is easy to learn and understand. Please follow the editor's train of thought slowly and deeply. Let's study and learn "C++ explicit conversion example Analysis"!

The opposite of static_cast is dynamic_cast.

If you know the type of object at design / coding time, you can use static_cast. On the other hand, if you don't know what type of object there will be until after the program is executed, and you need to call different methods based on different objects, you need dynamic_cast.

Let's look at the code first.

Unlike static_cast, instead of checking the type of a variable (pointer), dynamic_cast checks the actual type and returns a pointer to the object if the object is an instance of a specified class or derived class, or 0 if it is not.

As shown in this program, objects can be filtered dynamically through dyanamic_cast, and then the appropriate functions can be invoked.

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