详谈用API读取Revit对象的参数值 .

代码说明：

   public static string ParameterToString(Parameter param)     {       string val = "none";       if (param == null)       {         return val;       }       // To get to the parameter value, we need to pause it depending on its storage type       switch (param.StorageType)       {         case StorageType.Double:           double dVal = param.AsDouble();           val = dVal.ToString();           break;         case StorageType.Inte