父类调用子类属性的问题

Question

public class 父类
{
    public void Dosomething()
    {
        //在这里我希望得到子类新增的属性及对应的值
    }
}
public class 子类1 : 父类
{
    public 属性1;
    public 属性2;
}
public class 子类2 : 父类
{
    public 属性3;
    public 属性4;
}
可能会有多个子类
new 子类1().Dosomething()里面的对应的属性是子类1的或者不用这种继承的结构,只要能实现相同的功能就行

Answer 1

  protected void Page_Load(object sender, EventArgs e)
        {            B obj = new B();
            obj.str1 = "a";
            obj.str2 = "b";
            Response.Write(obj.DoSomethine());        } class A
    {
        public string DoSomethine()
        {
            string str = "";
            FieldInfo[] fs=  this.GetType().GetFields();
            foreach (FieldInfo f in fs)
            {
                if (f.FieldType == typeof(string))
                {
                    str += f.GetValue(this).ToString();
                }
            }
            return str;
        }
    }
    class B:A
    {
        public string str1;
        public string str2;
    }

Answer 2

多谢 cpp2017有没有办法在B类的属性前面加点什么东西,给属性加个属性

Answer 3

using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Diagnostics;
using System.Drawing;
using System.Threading;
using System.IO;
using System.Security.Cryptography;
using System.Text.RegularExpressions;
using System.Data.SqlClient;
using System.Collections.Generic;
using System.Net;
using System.Reflection;
namespace Csdn
{    public partial class WebForm1 : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {            B obj = new B();
            obj.str1 = "a";
            obj.str2 = "b";
            Response.Write(obj.DoSomethine());        }    }
    class A
    {
        public string DoSomethine()
        {
            string str = "";
            FieldInfo[] fs=  this.GetType().GetFields();
            foreach (FieldInfo f in fs)
            {
                if (f.GetCustomAttributes(typeof(MyAtt),true).Length > 0)
                {
                    if (f.FieldType == typeof(string))
                    {
                        str += f.GetValue(this).ToString();
                    }
                }
            }
            return str;
        }
    }
    class B:A
    {
        [MyAtt]
        public string str1;
      
        public string str2;
    }
    class MyAtt : Attribute
    { 
        
    }
}