Delphi常见功能和所调用的函数及函数所在单元总结

1、根据已知日期求一个月最后一天

函数：EndOfTheMonth

单元：DateUtils

范例：ldate := datetostr(EndOfTheMonth(DateTimePicker_Start.Date));

2、根据已知日期求日期属哪一年哪一个月

函数：YearOf、MonthOfTheYear

单元：DateUtils

范例：lyearmonth := inttostr(YearOf(DateTimePicker_Start.Date)) + '-' + inttostr(MonthOfTheYear(DateTimePicker_Start.Date));