/// <summary> /// 字符串 /// </summary> /// <param name="propNames"></param> /// <returns></returns> public String ToString(params String[] propNames) { if (propNames == null || propNames.Length <= 0) { propNames = PDC.ConvertAll(x => x.Name).ToArray(); } StringBuilder str = new StringBuilder(); return(propNames.ToList().ConvertAll(x => this.Get <String>(x)).Aggregate((x, y) => x + "," + y)); }