A complete runnable C source program is composed of one and only one main function and more than zero (including 0) functions. In the main function, there must be one and only one function as the main function. The program starts running from the main function. When the main function is executed, the program execution is completed.
A complete runnable C source program consists of one and only one main function and more than zero (including 0) functions constituted.
(Recommended learning: C language tutorial)
Analysis:
A C program is composed of one or more functions. In the main function, there must be one and only one function as main function; the program starts running from the main function, and when the main function is executed, the program execution is completed. In addition to the main function, other functions can be included, which are only executed when called.
Related introduction:
C language is a process-oriented, abstract, general-purpose programming language that is widely used in low-level development.
C language can compile and process low-level memory in a simple way. C language is an efficient programming language that only generates a small amount of machine language and can run without any operating environment support.
Although the C language provides many low-level processing functions, it still maintains cross-platform characteristics. C language programs written in a standard specification can be used on operating platforms such as embedded processors and supercomputers. Compiled on many computer platforms.
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