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我可以得到兩個日期之間的時間間隔用這種方法:總和區間範圍
- (NSString *)calculateTime:(NSDate *)fromDateTime andDate:(NSDate *)toDateTime {
NSCalendar *calendar = [NSCalendar currentCalendar];
unsigned int unitFlags = NSHourCalendarUnit | NSMinuteCalendarUnit | NSSecondCalendarUnit;
NSDateComponents *conversionInfo = [calendar components:unitFlags fromDate:fromDateTime toDate:toDateTime options:0];
int hours = [conversionInfo hour];
int minutes = [conversionInfo minute];
int seconds = [conversionInfo second];
return [NSString stringWithFormat:@"%02dh %02dm %02ds", hours, minutes, seconds];
}
假設我有3個NSDate
範圍:
2013-02-03 11:20:43 - 2013-02-03 12:42:12 // 01h 21m 29s
2013-02-04 22:11:29 - 2013-02-05 01:56:30 // 03h 45m 01s
2013-02-05 14:02:10 - 2013-02-05 18:32:08 // 04h 29m 58s
我怎樣才能達到同樣的格式%02dh %02dm %02ds
範圍內的所有NSDate
範圍?換句話說,計算所有區間的總和。
任何建議,將不勝感激。