题目：输入某年某月某日，判断这一天是这一年的第几天？

1.程序分析：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。-Title: enter a certain period of a day, judgment day is the first few days of the year? Program analysis: March 5, for example, before the first two months combined, then add five days on the first few days of this year' s special circumstances, a leap year and enter a month more than 3 needs Consider the extra day.