//行内容

-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {

    //从重用队列中取出闲置单元格

    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:identifier];

    //判断cell是否为nil

    if (cell == nil) {

        //创建单元格的时候，要确保重用标示符跟获取闲置单元格的时候一致

        cell = [[UITableViewCell alloc] initWithStyle:indexPath.row %  reuseIdentifier:identifier];

        //添加右边的图标

        UIImageView *iconView = [[UIImageView alloc] initWithFrame:CGRectMake(CGRectGetWidth(tableView.frame) -  - , , , )];

        [cell.contentView addSubview:iconView];

        iconView.tag = ;

        //添加左边的标题Label

        UILabel *titleLabel = [[UILabel alloc] initWithFrame:CGRectMake(, , CGRectGetWidth(cell.frame) - , )];

        [cell.contentView addSubview:titleLabel];

        titleLabel.tag = ;

    }

    UIImageView *iconView = [cell.contentView viewWithTag:];

    UILabel *titleLabel = [cell.contentView viewWithTag:];

    //设置内容

    NSString *iconName = [NSString stringWithFormat:@"icon%ld.jpg",indexPath.row % ];

    iconView.image = [UIImage imageNamed:iconName];

    titleLabel.text = self.datas[indexPath.row];

    return cell;

}