7.29获取cell的index

//cell的点击方法

-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{

NSIndexPath *index = [NSIndexPath indexPathForRow:2 inSection:2];

PersonalDataCell *cell = [self.tableView cellForRowAtIndexPath:index];

cell.describeLabel.text = @"";

}