UITableview 中获取非选中的cell

 
//获取当前可显示的cell 的 IndexPath
for (NSIndexPath *ind in [tableView indexPathsForVisibleRows]) {
         AuthorizationCell *cell=(AuthorizationCell *)[tableView cellForRowAtIndexPath:ind];
        [cell.bt_radion setSelected:false];
    }
    
    AuthorizationCell *cell=(AuthorizationCell *)[tableView cellForRowAtIndexPath:indexPath];
    [cell.bt_radion setSelected:!cell.bt_radion.selected];