format.c

C Primer Plus(第五版)中文版,不用多说了

/* format.c -- format a string */
#include <stdio.h>
#define MAX 20

int main(void)
{
    char first[MAX];
    char last[MAX];
    char formal[2 * MAX + 10];
    double prize;

    puts("Enter your first name:");
    gets(first);
    puts("Enter your last name:");
    gets(last);
    puts("Enter your prize money:");
    scanf("%lf", &prize);
    sprintf(formal, "%s, %-19s: $%6.2f\n", last, first, prize);
    puts(formal);
    
    return 0;
}