#pragma mark - 去除状态栏干扰的方法- (void)viewDidLoad {    [super viewDidLoad];    if (_tableView.style == UITableViewStylePlain) {        UIEdgeInsets contentInset = _tableView.contentInset;        contentInset.top = 20;        [_tableView setContentInset:contentInset];                UIView *barBackground = [[UIView alloc]initWithFrame:CGRectMake(0, 0, 320, 20)];        barBackground.backgroundColor = [UIColor colorWithWhite:1 alpha:0.9];        [self.view addSubview:barBackground];    }    // Do any additional setup after loading the view, typically from a nib.}