/// <summary>
/// 根据主键和字段名称，获取对应字段的内容
/// </summary>
/// <param name="key">指定对象的ID</param>
/// <param name="fieldName">字段名称</param>
/// <returns></returns>
public virtual string GetFieldValue(string key, string fieldName)
{
return(baseBLL.GetFieldValue(key, fieldName));
}
