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