iOS Getter 和Setter 注册xibcell
// 初始化cell的xib的方式
[tableView registerNib:[UINib nibWithNibName:@"LXmiddleCell" bundle:nil] forCellReuseIdentifier:@"LXmiddleCell"];
LXmiddleCell *cell = [[LXmiddleCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:@"LXmiddleCell"];
cell = [tableView dequeueReusableCellWithIdentifier:@"LXmiddleCell"];
cell.selectionStyle = UITableViewCellSelectionStyleNone;
cell.contentLabel.textAlignment = NSTextAlignmentRight;
cell.itemNameLabel.text = _itemArray[indexPath.row-1];
cell.contentLabel.text = self.titleArray[indexPath.row-1];