Delphi检查判断闰年，在日期年份的选择上，直接调用了Windows的日期选择器功能，选择年份和日期挺方便的，个人觉得判断闰年并不怎么常用，倒是时间日期选择功能挺实用。-Delphi examination to determine leap year, the year of the date of selection, direct calls to the date picker feature of Windows, choose the year and date very conv