方法重载：同一个类中，方法名相同，参数列表不同. 注：参数列表不同包括方法中参数的个数不同或参数的数据类型不同. 注：方法重载时，编译器首先判断的是参数的个数，然后再执行参数列表检查。

eg:

 

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

namespace OverridDemo

{

    class Program

    {

        static void Main(string[] args)

        {

            (new Program()).run();

        }

        void run()

        {

            int arg1 = 10;

            float arg2 = 12.5f;

            int arg3 = 30;

            DoWorkWithData(arg1);

            DoWorkWithData(arg2);

            DoWorkWithData(arg1, arg2, arg3);

            DoWorkWithData(arg1, arg2);

            DoWorkWithData(arg2, arg3);

        }

        void DoWorkWithData(int intData)

        {

            Console.WriteLine("intData:{0}", intData);

        }

        void DoWorkWithData(float floatData)

        {

            Console.WriteLine("floatData:{0}", floatData);

        }

        void DoWorkWithData(int intData,float floatData,int moreIntData)

        {

            Console.WriteLine("intData:{0},floatData:{1},moreIntData:{2}",

                intData,floatData,moreIntData);

        }

        void DoWorkWithData(int intData, float floatData)

        {

            Console.WriteLine("intData:{0},floatData:{1}",intData,floatData);

        }

        void DoWorkWithData(float floatData,int intData)

        {

            Console.WriteLine("floatData:{0},intData:{1}", floatData, intData);

        }

    }

}