编写程序,输入一个月份值,输入该月份是第几季度。
#include<stdio.h>
int main()
{
int month;
printf("输入月份:");
scanf("%d",&month);
switch((month-1)/3)
{
case 0:
printf("%d月是第一季度\n",month);
break;
case 1:
printf("%d月是第二季度\n",month);
break;
case 2:
printf("%d月是第三季度\n",month);
break;
case 3:
printf("%d月是第四季度\n",month);
break;
default:
printf("输入错误\n");
break;
}
return 0;
}
运行结果:
接下来,继续创建一个小程序,输入年、月,输出该年、该月的天数。
#include<stdio.h>
int main()
{
int year,month,days;
printf("请输入年、月:");
scanf("%d,%d",&year,&month);
switch(month)
{
case 1:
case 3:
case 5:
case 7:
case 8:
case 10:
case 12:
days=31;
break;
case 4:
case 6:
case 9:
case 11:
days=30;
break;
case 2:
if(year%400==0||year%4==0&&year%100!=0)
days=29;
else
days=28;
break;
}
printf("%d年%d月的天数是%d天\n",year,month,days);
return 0;
}
运行结果: