C#学习3

从键盘输入两个数，将其相加并输出

using System;using System.Collections.Generic;using System.Linq;using System.Textnamespace abc{    class Program    {        static void Main(string[] args)        {            (new Program()).run();        }        public void run()        {            double left=readdouble("输入左操作数： ");            double right=readdouble("输入右操作数： ");            writefree(solve(left,right));        }        private void writefree(double p)        {            Console.WriteLine("结果是：{0}", p);        }        private double solve(double left, double right)        {            return left * right;        }        private double readdouble(string p)        {            Console.Write(p);            string Line = Console.ReadLine();            return double.Parse(Line);        }    }}

附个截图