int month = 12;
int day = 15;
int totalDay = 0;
for (int i = 1; i < month; i++)
{
switch (i)
{
case 11: totalDay = totalDay + 30;
break;//必须写
case 10: totalDay = totalDay + 31;
break; //必须写 case 9:
totalDay = totalDay + 30;
break; //必须写
………
case 1: totalDay = totalDay + 31;
break; //必须写
default: break; //必须写
}
}
totalDay = totalDay + day;
Console.WriteLine("总天数{0}",totalDay);