day_mon2.z~

来自「c primer plus 第五版 的源代码」· Z~ 代码 · 共 14 行

/* day_mon2.c -- letting the compiler count elements */
#include <stdio.h>
int main(void)
{
    const int days[] = {31,28,31,30,31,30,31,31,30,31};
    int index;

    for (index = 1; index < sizeof days / sizeof days[0];index++)
        printf("Month %2d has %d days.\n", 
               days[index]);
  
    return 0;
}