The getchar function can only receive one parameter

#The getchar function can only receive one parameter?

The getchar() function is to get an unsigned character from the computer terminal (usually the keyboard). The getchar() function can only receive one character , and its function value is the character obtained from the input device

getchar function syntax

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（ 1) Function declaration

int getchar(void)

(2) Parameter

NA

(3) Function

C library function int getchar(void)Gets a character (an unsigned character) from the standard input stdin. This is equivalent to getc taking stdin as argument.

(4) Return value

This function returns the read characters in the form of unsigned char cast to int. If the end of the file is reached or a read error occurs, EOF is returned.

(5) Usage

This function is declared in the stdio.h header file, and the stdio.h header file must be included when using it. Such as

#include<stdio.h>
int getchar(void);

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