/// <summary>
    /// Inits the row.
    /// </summary>
    private void InitRow()
    {
        Utility.DestroyAllChildren(_info.ScreenRoot.gameObject);

        //显示的函数列表..总共有TotalRowCount行显示信息...

        /*
         * _currBulletTextInfoList = new CombBulletTextInfo[_info.TotalRowCount];
         * for (int rowIndex = 0; rowIndex < _info.TotalRowCount; rowIndex++) {
         *      _currBulletTextInfoList[rowIndex] = null;
         * }*/
        _currBulletTextElement = null;

        //节点名字....设置节点的父亲节点为_info的ScreenRoot节点...
        //only need one column
        string     rowNodeName = string.Format("column_{0}", 0);
        GameObject newRow      = new GameObject(rowNodeName);
        var        rt          = newRow.AddComponent <RectTransform>();

        rt.SetParent(_info.ScreenRoot.transform, false);
    }