_mainTableView.allowsMultipleSelectionDuringEditing = YES;

self.selectionStyle = UITableViewCellSelectionStyleDefault;

 UIView *view = [[UIView alloc] init];
 view.backgroundColor = UIColorFromRGB(0xF6F6F6);
 self.selectedBackgroundView = view;

 [self.viewModel.rightViewModel.clickSubject subscribeNext:^(id x) {
    @strongify(self);
    if (self.mainTableView.editing) {
      self.viewModel.rightViewModel.title = @"编辑";
      [UIView animateWithDuration:0.5 animations:^{
        [self.mainTableView mas_remakeConstraints:^(MASConstraintMaker *make) {
          @strongify(self);
          make.edges.equalTo(self);
        }];
      }];
    } else {
      self.viewModel.rightViewModel.title = @"确定";
      [UIView animateWithDuration:0.5 animations:^{
        [self.mainTableView mas_remakeConstraints:^(MASConstraintMaker *make) {
          @strongify(self);
          make.left.right.top.equalTo(self);
          make.bottom.equalTo(-50);
        }];
      }];
    }
    [self.mainTableView setEditing:!self.mainTableView.editing animated:YES];
  }];

 [[[self.deleteBtn rac_signalForControlEvents:UIControlEventTouchUpInside] takeUntil:self.rac_willDeallocSignal] subscribeNext:^(id x) {
     @strongify(self);
    NSMutableArray *deleteArray = [NSMutableArray array];
    for (NSIndexPath *indexPath in self.mainTableView.indexPathsForSelectedRows) {
      [deleteArray addObject:self.viewModel.dataArray[indexPath.row]];
    }
    NSMutableArray *currentArray = self.viewModel.dataArray;
    [currentArray removeObjectsInArray:deleteArray];
    self.viewModel.dataArray = currentArray;
    [self.mainTableView deleteRowsAtIndexPaths:self.mainTableView.indexPathsForSelectedRows withRowAnimation:UITableViewRowAnimationLeft];//删除对应数据的cell
    dispatch_time_t delayTime = dispatch_time(DISPATCH_TIME_NOW, (int64_t)(1.0 * NSEC_PER_SEC));
    dispatch_after(delayTime, dispatch_get_main_queue(), ^{
      @strongify(self);
      [self.mainTableView reloadData];
    });
  }];

#pragma mark - delete
- (UITableViewCellEditingStyle)tableView:(UITableView *)tableView editingStyleForRowAtIndexPath:(NSIndexPath *)indexPath {
  return UITableViewCellEditingStyleDelete;
}
- (NSString *)tableView:(UITableView *)tableView titleForDeleteConfirmationButtonForRowAtIndexPath:(NSIndexPath *)indexPath {
  return @"删除此经验";
}
- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath {
  [self.viewModel.deleteCommand execute:indexPath];
}

  [[[self.deleteBtn rac_signalForControlEvents:UIControlEventTouchUpInside] takeUntil:self.rac_prepareForReuseSignal] subscribeNext:^(id x) {
    [viewModel.deleteCommand execute:nil];
  }];

 [[self.viewModel.deleteSubject takeUntil:self.rac_willDeallocSignal] subscribeNext:^(NSIndexPath *indexPath) {
    @strongify(self);
    if (self.viewModel.dataArray.count > indexPath.row) {
      [self.viewModel.dataArray removeObjectAtIndex:indexPath.row]; //删除数组里的数据
      [self.mainTableView deleteRowsAtIndexPaths:[NSMutableArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationLeft];//删除对应数据的cell
      dispatch_time_t delayTime = dispatch_time(DISPATCH_TIME_NOW, (int64_t)(1.0 * NSEC_PER_SEC));
      dispatch_after(delayTime, dispatch_get_main_queue(), ^{
         @strongify(self);
         [self.mainTableView reloadData];
      });
    }
  }];

self.tableView.allowsSelection = NO;

self.tableView.allowsMultipleSelection = YES;

self.tableView.allowsSelectionDuringEditing = NO;

self.tableView.allowsMultipleSelectionDuringEditing = YES;

[self.tableView indexPathsForSelectedRows]

[self.tableView indexPathsForVisibleRows];

cell.selectedBackgroundView.backgroundColor

cell.selectedBackgroundView

cell.textLabel.highlightedTextColor

[theTableView setSeparatorColor:[UIColor xxxx ]];

[self.tableView deselectRowAtIndexPath:[self.tableView indexPathForSelectedRow] animated:YES];

 - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
  //消除cell选择痕迹
  [self performSelector:@selector(deselect) withObject:nil afterDelay:0.5f];
}
- (void)deselect {
  [self.tableview deselectRowAtIndexPath:[self.tableview indexPathForSelectedRow] animated:YES];
}