/一個section刷新 ???
NSIndexSet *indexSet=[[NSIndexSet alloc]initWithIndex:2]; ???
[tableview reloadSections:indexSet withRowAnimation:UITableViewRowAnimationAutomatic]; ???
?
//一個cell刷新 ???
NSIndexPath *indexPath=[NSIndexPath indexPathForRow:3 inSection:0]; ???
[tableView reloadRowsAtIndexPaths:[NSArray arrayWithObjects:indexPath,nil] withRowAnimation:UITableViewRowAnimationNone];?