结对编程 四则运算

设计思路：

不是这么久不做作业，而是确实水平有限，但是出了结对编程，又实在不想去无聊的浪费大把时间抄写陈老师的作业，便与小伙伴一起再次打起代码，再加上其他好朋友的帮助就做了这个简陋的程序，用了大约一个星期。

总结：

还是觉得编程不简单，也许是练得少吧，还是要提高自己的能力，陈老师课上推荐了一些书，下课要找时间看看，大一C#没有认真学导致大二跟不上，好后悔。我想我会赶上的。特别要感谢我的同伴和我的室友们。

伙伴：康贺

代码实现：

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

namespace ConsoleApplication2
{
    class Program
    {
        public static void Ni()
        {
            Console.WriteLine("请输入你想做的运算+，-，*，/ ");
            string m = Console.ReadLine();
            switch (m)
            {
                case "+":
                    Shu.Wo();
                    break;
                case "-":
                    Shu.Sub();
                    break;
                case "*":
                    Shu.Sheng();
                    break;
                case "/":
                    Shu.Chu();
                    break;

            }
            Console.ReadLine();
        }
        static void Main(string[] args)
        {
            Ni();
        }
    }

    //定义委托
    public delegate double Num(double x, double y);
    public class Math
    {
        public static double Add(double x, double y)
        { return x + y; }
        public static double Sub(double x, double y)
        { return x - y; }
        public static double sub(double x, double y)
        { return y - x; }
        public static double Sheng(double x, double y)
        { return x * y; }
        public static double Chu(double x, double y)
        { return x / y; }
    }
    public class Shu
    {
        public static int o = 0;//获取做错的题数
        public static int i = 0;//获取做题总数
        public static int right = 0;//获取做错的题数
        public static void Wo()
        {


            double sum, n;
            Random r = new Random();
            double x = r.Next(0, 10);
            double y = r.Next(0, 10);
            sum = x + y;
            Console.WriteLine("{0}+{1}=", x, y);
            Console.WriteLine("结果：");
            n = double.Parse(Console.ReadLine());
            Num nu = new Num(Math.Add);
            Console.WriteLine("正确结果是：");
            Console.WriteLine("{0}", nu(x, y));
            if (sum == n)
            {
                Console.WriteLine("正确。");
                i++;
                right++;
                Wo();



            }
            else if (n == 99)//提示输入99表示退出运算,不做其它运算
            {
                Jieshu();

            }

            else if (n == 00)//提示输入00退出本次运算可以继续做其它运算
            {
                Jieshu();

                Program.Ni();

            }
            else
            {
                Console.WriteLine("你的结果不正确");
                i++;
                o++;
                Wo();



            }


        }
        public static void Jieshu()
        {
            Console.WriteLine("你已退出计算。你共做{0}道题，答对{1},答错{2}
", i, right, o);

        }
        public static void Sub()
        {


            double sum, n;
            Random r = new Random();
            double x = r.Next(0, 10);
            double y = r.Next(0, 10);
            if (x > y)
            {
                sum = x - y;
                Console.WriteLine("{0}-{1}=", x, y);
                Console.WriteLine("结果：");
                n = double.Parse(Console.ReadLine());
                Num nu = new Num(Math.Sub);
                Console.WriteLine("正确结果是：");
                Console.WriteLine("{0}", nu(x, y));
                if (sum == n)
                {
                    Console.WriteLine("正确！");
                    i++;
                    right++;
                    Wo();
                }
                else if (n == 99)
                {
                    Jieshu();

                }

                else if (n == 00)
                {
                    Jieshu();

                    Program.Ni();



                }
                else
                {
                    Console.WriteLine("你的结果不正确");
                    i++;
                    o++;
                    Sub();
                }

            }
            else if (x < y)
            {
                sum = y - x;
                Console.WriteLine("{0}-{1}=", y, x);
                Console.WriteLine("结果：");
                n = double.Parse(Console.ReadLine());
                Num nu = new Num(Math.sub);
                Console.WriteLine("正确结果是：");
                Console.WriteLine("{0}", nu(x, y));
                if (sum == n)
                {
                    Console.WriteLine("正确！");
                    i++;
                    right++;
                    Wo();
                }
                else if (n == 99)
                {
                    Jieshu();

                }

                else if (n == 00)
                {
                    Jieshu();

                    Program.Ni();


                }
                else
                {
                    Console.WriteLine("你的结果不正确");
                    i++;
                    o++;
                    Sub();
                }
            }
        }
        public static void Sheng()
        {


            double sum, n;
            Random r = new Random();
            double x = r.Next(0, 10);
            double y = r.Next(0, 10);
            sum = x * y;
            Console.WriteLine("{0}*{1}=", x, y);
            Console.WriteLine("结果：");
            n = double.Parse(Console.ReadLine());
            Num nu = new Num(Math.Sheng);
            Console.WriteLine("正确结果是：");
            Console.WriteLine("{0}", nu(x, y));
            if (sum == n)
            {
                Console.WriteLine("正确！");
                i++;
                right++;
                Wo();
            }
            else if (n == 99)
            {
                Jieshu();

            }

            else if (n == 00)
            {
                Jieshu();

                Program.Ni();



            }
            else
            {
                Console.WriteLine("你的结果不正确");
                i++;
                o++;
                Sheng();
            }
        }
        public static void Chu()
        {


            double sum, n;
            Random r = new Random();
            double x = r.Next(0, 10);
            double y = r.Next(0, 10);
            if (y != 0)
            {
                sum = x / y;
                Console.WriteLine("{0}/{1}=", x, y);
                Console.WriteLine("结果：");
                n = double.Parse(Console.ReadLine());
                Num nu = new Num(Math.Chu);
                Console.WriteLine("正确结果是：");
                Console.WriteLine("{0}", nu(x, y));
                if (sum == n)
                {
                    Console.WriteLine("正确！");
                    i++;
                    right++;
                    Wo();
                }
                else if (n == 99)
                {
                    Jieshu();

                }

                else if (n == 00)
                {
                    Jieshu();

                    Program.Ni();



                }
                else
                {
                    Console.WriteLine("你的结果不正确");
                    i++;
                    o++;
                    Chu();
                }
            }
            else
            {
                sum = y / x;
                Console.WriteLine("{0}/{1}=", y, x);
                Console.WriteLine("结果：");
                n = double.Parse(Console.ReadLine());
                Num nu = new Num(Math.Chu);
                Console.WriteLine("正确结果是：");
                Console.WriteLine("{0}", nu(x, y));
                if (sum == n)
                {
                    Console.WriteLine("正确！");
                    i++;
                    right++;
                    Wo();
                }
                else if (n == 99)
                {
                    Jieshu();

                }
                else if (n == 00)
                {
                    Jieshu();

                    Program.Ni();



                }
                else
                {
                    Console.WriteLine("你的结果不正确");
                    i++;
                    o++;
                    Chu();
                }
            }
        }

    }
}