编程学习网为您整理以下代码实例,主要实现:printf()格式各种数据格式,整数,浮点数,字符串,字符,指针,希望可以帮到各位朋友。
#include <stdio.h>
int main (voID)
{
char c = 'A';
char s[] = "abcdefghijklmnopqrstuvwxyz";
int i = 999;
short int j = 17;
unsigned int u = 0xf123U;
long int l = 12312L;
long long int L = 0x1234567812345678LL;
float f = 12.978F;
double d = -12.3456;
char *cp = &c;
int *ip = &i;
int c1, c2;
printf ("Integers:\n");
printf ("%i %o %x %u\n", i ,i ,i, i);
printf ("%x %X %#x %#X\n", i, i, i, i);
printf ("%+i % i %07i %.7i\n", i, i, i, i);
printf ("%i %o %x %u\n", j ,j ,j, j);
printf ("%i %o %x %u\n", u ,u ,u, u);
printf ("%ld %lo %lx %lu\n", l ,l ,l, l);
printf ("%lli %llo %llx %llu\n", L ,L ,L, L);
printf ("\nfloats and Doubles:\n");
printf ("%f %e %g\n", f, f, f);
printf ("%.2f %.2e\n", f, f);
printf ("%.0f %.0e\n", f, f);
printf ("%7.2f %7.2e\n", f ,f);
printf ("%f %e %g\n", d ,d ,d);
printf ("%.*f\n", 3 ,d);
printf ("%*.*f\n", 8 ,2 ,d);
printf ("\nCharacters:\n");
printf ("%c\n", c);
printf ("%3c%3c\n", c, c);
printf ("%x\n", c);
printf ("\nStrings:\n");
printf ("%s\n", s);
printf ("%.5s\n", s);
printf ("%30s\n", s);
printf ("%20.5s\n", s);
printf ("%-20.5s\n", s);
printf ("\nPointers:\n");
printf ("%p %p\n\n", ip, cp);
printf ("This%n is fun.%n\n", &c1, &c2);
printf ("c1 = %i, c2 = %i\n", c1, c2);
return 0;
}
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