BEGIN:VCALENDAR
PRODID:-//github.com/rianjs/ical.net//NONSGML ical.net 4.0//EN
VERSION:2.0
BEGIN:VEVENT
DTEND:20261216T130000
DTSTAMP:20261111T103321Z
DTSTART:20261216T120000
SEQUENCE:0
SUMMARY:中醫如何預防流感
UID:0cb797e7-2d54-4c3e-82c5-48dccb86e9da
END:VEVENT
END:VCALENDAR