using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine("直接 new 父类");
            Parent p = new Parent();
            p.Print();
            Console.WriteLine("直接 new 子类");
            Sub s = new Sub();
            s.Print();
            Console.WriteLine("父类 new 子类");
            Parent p2 = new Sub();
            p2.Print();

            Console.Read();
        }
    }

    public class Parent 
    {
        public void Print()
        {
            Console.WriteLine("第 1 种：随机应变,子就是子父就是父。获取当前实例的type");
            Type t1 = this.GetType();
            Console.WriteLine(t1.FullName);
            Console.WriteLine("第 2 种：一定是父类. 获取执行方法所在类的type ");
            Type t2 = new System.Diagnostics.StackTrace().GetFrame(0).GetMethod().DeclaringType;
            Console.WriteLine(t2.FullName);
            Console.WriteLine("第 3 种：一定是父类. 获取执行方法所在类对象的type");
            Type t3 = System.Reflection.MethodBase.GetCurrentMethod().ReflectedType;
            Console.WriteLine(t3.FullName);
            Console.WriteLine("第 4 种：一定是父类. 获取声明该成员的类的type");
            Type t4 = System.Reflection.MethodBase.GetCurrentMethod().DeclaringType;
            Console.WriteLine(t3.FullName);
            Console.WriteLine();
        }
    }

    public class Sub : Parent
    {
        
    }
}