What are the two storage classes of functions?

C There are two types of storage classes for functions, namely external functions and internal functions. The storage class description of the [external] function cannot be omitted. The specifier is [extern].

The storage class of C function is divided into two types, they are external function and internal function. The storage class description of the (external) function cannot be omitted. This description Symbol is (extern)
Related introduction:

C is the inheritance of C language. It can perform procedural programming of C language and object-based programming characterized by abstract data types. Design, you can also conduct object-oriented programming characterized by inheritance and polymorphism. While C is good at object-oriented programming, it can also perform process-based programming. Therefore, C is big or small in terms of the size of the problem it can adapt to.

C not only has the practical features of efficient computer operation, but is also committed to improving the programming quality of large-scale programs and the problem description capabilities of programming languages.

Recommended tutorial: "c Language Tutorial"

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