What does stdio.h mean?

The full name of stdio.h is "standard input output.header", which means "standard input and output header file" in Chinese. When using the standard input and output functions, this header file must be called; the stdio.h file The content is the declaration of some basic input and output functions.

#Generally, in C language or C, the extension of the file used to #include is .h, which is called a header file. The purpose of the #include file is to put content common to multiple compilation units (that is, c or cpp files) into a separate file to reduce the overall code size; or to provide cross-project common code. In the current c version, the application of this header file should be #include

stdio refers to "standard input & output" (standard input and output)

So , if the standard input and output functions are used in the source code, this header file must be included!

For example, printf("%d",i); scanf("%d",&i); and other functions in C language.

The content of the stdio.h file is the declaration of some basic input and output functions, such as scanf() and printf() functions. If you include stdio.h, it is equivalent to declaring these functions, so You can then use them in your own programs.

stdio refers to "standard input & output" (standard input and output)

So, if the standard input and output functions are used in the source code, this header file must be included.

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