时间戳

-(NSString *)getTime{
    NSDate *datenow = [NSDate date];
//        NSTimeZone *zone = [NSTimeZone systemTimeZone];
//        NSInteger interval = [zone secondsFromGMTForDate:datenow];
//        NSDate *localeDate = [datenow  dateByAddingTimeInterval: interval];
    NSString *timeSp = [NSString stringWithFormat:@"%ld", (long)[datenow timeIntervalSince1970]];
    return timeSp;
    
    
}