根据指定日期与当前日期时间对比相差几周几月

#define knewsTimeFormat @"yyyyMMddHHmmss" //你要传过来日期的格式 #define kLocaleIdentifier @"en_US" // 发布时间 - (NSString *)newsTime:(NSString *)newsTimes { NSDateFormatter *formatter = [[NSDateFormatter alloc] init]; formatter.dateFormat = knewsTimeFormat; formatter.locale = [[NSLocale alloc] initWithLocaleIdentifier:kLocaleIdentifier]; NSDate *date = [formatter dateFromString:newsTimes]; NSDate *now = [NSDate date]; // 比较帖子发布时间和当前时间 NSTimeInterval interval = [now timeIntervalSinceDate:date]; NSString *format; if (interval <= 60) { format = @"刚刚"; } else if(interval <= 60*60){ format = [NSString stringWithFormat:@"发布于前%.f分钟", interval/60]; } else if(interval <= 60*60*24){ format = [NSString stringWithFormat:@"发布于前%.f小时", interval/3600]; } else if (interval <= 60*60*24*7){ format = [NSString stringWithFormat:@"发布于前%d天", (int)interval/(60*60*24)]; } else if (interval > 60*60*24*7 & interval <= 60*60*24*30 ){ format = [NSString stringWithFormat:@"发布于前%d周", (int)interval/(60*60*24*7)]; }else if(interval > 60*60*24*30 ){ format = [NSString stringWithFormat:@"发布于前%d月", (int)interval/(60*60*24*30)]; } formatter.dateFormat = format; return [formatter stringFromDate:date]; }