两个datetimepicker中,如何算出相差的天数??

Question

比如datetimepicker1的时间是1982-8-6
datetimepicker2的时间是1982-8-26那么它们的天数差就为20天delphi中要怎么写????
谢谢

Answer 1

trunct(datetimepicker1.date-datetimepicker2.date);

Answer 2

uses DateUtils;
function DaysBetween(const ANow, AThen: TDateTime): Integer;i :=DaysBetween(datetimepicker1.datetime,datetimepicker2.datetime);
showmessage(inttostr(i));

Answer 3

num:=trunc(date1-date2);
给分吧