我看。

p245
/*day_mon1.c --打印每月的天数 */
#include <stdio.h>
#define MONTHS 12
int main (void)
{
int days [MONTHS] ={31,28,31,30,31,30,31,31,30,31,30,31};
int index;
for (index = 0;index < MONTHS; index++)
printf ("Month #d has %2d days.\n", index +1,
days [index]);
return 0;
}

p248
// designate.c --使用指定初始化项目
#include <stdio.h>
#define MONTHS 12
int main (void)
{
int days[MONTHS] = {31,28,[4] = 31,30,31,[1]=29};
int i;
for(i = 0; i< MONTHS; i++)
printf ("#2d #d\n", i+1,days[i]);
return 0;
}

shangji zuoye

zhishi xiaoshui yixia

我看

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