vimwiki

Stdio.h

#include <stdio.h>

printf

int num = 2;
printf("num = %d\n", num);

Format Specifier	Description	Example
%d	Integer	printf(“%d”, 42);
%f	Float/Double	printf(“%f”, 3.14);
%c	Character	printf(“%c”, ‘A’);
%s	String	printf(“%s”, “Hello”);
%p	Pointer	printf(“%p”, &variable);
%x	Hexadecimal (lowercase)	printf(“%x”, 255);
%X	Hexadecimal (uppercase)	printf(“%X”, 255);
%o	Octal	printf(“%o”, 63);
%u	Unsigned Integer	printf(“%u”, 42);
%e	Scientific Notation	printf(“%e”, 123.45);
%E	Scientific Notation	printf(“%E”, 123.45);
%g	Shorter of %f and %e	printf(“%g”, 123.45);
%G	Shorter of %f and %E	printf(“%G”, 123.45);
%%	Literal %	printf(“%%”);