Detailed explanation of the usage of C++ reloading, redefinition and rewriting

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1. Overloaded (overloaded function)

Overloaded functions are C++ functions that allow several functions of the same name to be declared in the same scope (in a class) for convenience, but the formal parameters of these functions of the same name (that is, at least one parameter number, type, or order) must be different.

1. The code implements the overloading of the fun () function in a class:

# includeusing namespace std;class Base {public: void fun () {cout