获得现在的时间

- (void)viewDidLoad
{
    [super viewDidLoad];
    // Do any additional setup after loading the view.
    
    self.title=@"RootViewController";
    
    NSLog(@"------timer--now--%@",[self getTimeForNow]);
    
}
-(NSString *) getTimeForNow
{
    NSDate * senddate=[NSDate date];
    NSDateFormatter *dateformatter=[[NSDateFormatter alloc] init];
    [dateformatter setDateFormat:@"YYYY-MM-dd HH:mm:ss"];
    NSString *timeDate = [[NSString alloc] initWithString:[dateformatter stringFromDate:senddate]];
    
    return timeDate ;
}

2014-06-26 17:29:22.858 得到现在的时间[14745:60b] ------timer--now--2014-06-26 17:29:22