输入某年某月某日，判断这一天是这一年的第几天？比如：以3月5日为例，应该先把前两个月的加起来，然后再加上5天即本年的第几天，特殊情况，闰年且输入月份大于3时需考虑多加一天。

-Enter a year a certain day, judgment day is the day of the year? For example: the March 5, for example, should first add up the first two months, then add the five days that the first few days of this year, special circumstances, leap year and enter the month to consider when to pay more than 3 day.