CreateappointmentwithcustompropertiesinEWS我尝试向创建的date添加自定义属性,如下所示:12345678910varnewEvent=newAppointment(service) { Start=start, End=end, Subject=subject, ReminderMinutesBeforeStart=15 }; varextendendProperty=newExtendedPropertyDefinition(DefaultExtendedPropertySet.Addres