ios UITableview 刷新某一个cell 或 section

//一个section刷新   
NSIndexSet *indexSet=[[NSIndexSet alloc]initWithIndex:2];   
[tableview reloadSections:indexSet withRowAnimation:UITableViewRowAnimationAutomatic];   
//一个cell刷新   
NSIndexPath *indexPath=[NSIndexPath indexPathForRow:3 inSection:0];   
[tableView reloadRowsAtIndexPaths:[NSArray arrayWithObjects:indexPath,nil] withRowAnimation:UITableViewRowAnimationNone]; 

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转载自iaiai.iteye.com/blog/2293727