如何调用C#中私有成员函数？

1，C#中无法访问类中私有成员函数吗？函数“private void AcceptDetails()"可以改成”public void AcceptDetails()“可以进行，但是在”private"情况下，如何调用函数呢？
2， 代码如下：

using System;
namespace RectangleApplication
{
    class Rectangle
    {
        private double length;
        private double width;
        private void AcceptDetails()
        {
            Console.WriteLine("Please input length: ");
            length = Convert.ToDouble(Console.ReadLine());
            Console.WriteLine("Please input width: ");
            width = Convert.ToDouble(Console.ReadLine());
        }
        public double GetArea()
        {
            return length * width;
        }
        public void Display()
        {
            Console.WriteLine("length; {0}", length);
            Console.WriteLine("width: {0}", width);
            Console.WriteLine("area: {0}", GetArea());
        }
    }
    class ExecuteRetangle
    {
        static void Main(string[] args)
        {
            Rectangle r = new Rectangle();
            r.AcceptDetails();
            r.Display();
            Console.ReadLine();
        }
    }
}

反射调用
https://blog.csdn.net/chenbeifang/article/details/99725025

新增一个public方法直接调用它.........

  class Rectangle
    {
        public void acc() {
            AcceptDetails();
        }
    }

反射

            Rectangle rec = new Rectangle();

            Type t = typeof(Rectangle);
            BindingFlags flags = BindingFlags.NonPublic | BindingFlags.Instance;
            MethodInfo mInfo = t.GetMethod("AcceptDetails",flags);

            ConstructorInfo magicConstructor = t.GetConstructor(Type.EmptyTypes);
            mInfo.Invoke(rec, null);

            rec.Display();
            Console.ReadLine();