我正在尝试解析给定NSDate的星期几。NSDateComponents*comps=[[NSDateComponentsalloc]init];comps=[calendarcomponents:NSCalendarUnitDay|NSCalendarUnitMonth|NSCalendarUnitYear|NSCalendarUnitWeekOfMonth|NSCalendarUnitWeekOfYear|NSCalendarUnitWeekdayfromDate:date];当date的值为2015-11-3000:58:52+0000(这是星期一)时，打印出comps.week