- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
  [self.tableView deselectRowAtIndexPath:indexPath animated:NO];


  currentRow = indexPath.row;

  NSDictionary *sectionDic = self.dataSource[indexPath.section];
  NSArray *cellArray = sectionDic[@"sub"];

  //cell当前的数据
  NSDictionary *cellData = cellArray[indexPath.row];

  NSString *key = [NSString stringWithFormat:@"%@", cellData[@"chapterID"]];
  CellModel *chapterModel = [self.cellOpen valueForKey:key];

  chapterModel.isShow = !chapterModel.isShow;

  [self.tableView reloadRowsAtIndexPaths:@[indexPath] withRowAnimation:UITableViewRowAnimationAutomatic];
}