int month = 0;
printf("请输入一个月份:1-12\n");
scanf("%d",&month);
if (month < 1 || month > 12) {
printf("不合法，请重新输入!\n");
}
switch (month) {
case 3:
case 4:
case 5:
printf("春季\n");
break;
case 6:
case 7:
case 8:
printf("夏季\n");
break;
case 9:
case 10:
case 11:
printf("秋季\n");
break;
case 12:
case 1:
case 2:
printf("冬季\n");
break;
default:
break;
}
return 0;
}