/**

     *  下拉刷新 增加一个；

     */

    //修复下拉刷新位置错误 代码开始

    if ([self respondsToSelector:@selector(automaticallyAdjustsScrollViewInsets)]) {

        self.automaticallyAdjustsScrollViewInsets = NO;

        UIEdgeInsets insets = self.tableView.contentInset;

        insets.top = self.navigationController.navigationBar.bounds.size.height +

        [UIApplication sharedApplication].statusBarFrame.size.height;

        self.tableView.contentInset = insets;

        self.tableView.scrollIndicatorInsets = insets;

    }

    //修复下拉刷新位置错误  代码结束

    __block RootViewController *bSelf = self;

    [self.tableView addPullToRefreshWithActionHandler:^{

        [bSelf addRows];

    }];

    /**

     *  拉到最后 加载更多，增加一个；

     */

    [self.tableView addInfiniteScrollingWithActionHandler:^{

        [bSelf addMoreRow];

    }];