Introduction - If you have any usage issues, please Google them yourself
01-01,当前年月日为1990-0101,输出“出生了365天”,-Enter month and year of birth date, month and year and then enter the current date, obtained a few days of birth, such as date of birth as 1990-01-01, the current date of 1990-0101 years, the output was born 365 days ,