我也国庆大赠送，新手尝试一下：猎狗追兔 - C语言论坛

dreamofgod

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第 32 楼

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回复 31楼 TonyDeng

也许不用，标题独特点就可以了~~~~反正不会有正确答案。

一个单片机就让我头疼不已~~~

2011-10-01 20:46

hjywyj

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第 34 楼

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要是一直沿着直线追，那就简单了。

2011-10-02 08:54

laznrbfe

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第 36 楼

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回复 8楼 TonyDeng

不知道是不是高一奥数题？

2011-10-02 14:14

q332010372

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第 38 楼

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Dog.cs

程序代码：

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

namespace Date20111002
{
    class Dog
    {
        public bool dogWin = false;
        public double locationX;
        public double locationY;
        public double x1,y1;
        public double speed;
        public double sina;
        public Dog(double x, double y, int theSpeed) {
            locationX = x;
            locationY = y;
            speed = theSpeed;
        }
    }
}

Rabbit.cs

程序代码：

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

namespace Date20111002
{
    class Rabbit
    {
        public bool rabbitWin = false;
        private double X, Y;
        public double speed;
        public double x1, y1;
        public readonly double sina;
        private double rabbitDistance;

        public double locationX {
            get {
                return X;
            }
            set {
                if (value < 0)
                {
                    X = 0;
                    Y = 0;
                }
                else {
                    X = value;
                }
            }
        }

        public double locationY {
          get {
                return Y;
            }
            set {
                if (value < 0)
                {
                    Y = 0;
                    X = 0;
                }
                else {
                    Y = value;
                }
            }
        }
       
        public double RabbitDistance {
            get {
                return rabbitDistance;
            }
            set {
                if (rabbitDistance <= 0)
                {
                    rabbitDistance = 0;
                }
                else {
                    rabbitDistance = value;
                }
            }
        }

        public Rabbit(double x, double y, int theSpeed) {
            X = x;
            Y = y;
            speed = theSpeed;
            rabbitDistance = Math.Sqrt(x*x+y*y);
            sina = y / Math.Sqrt((x * x + y * y));

        }

    }
}

Program.cs

程序代码：

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

namespace Date20111002
{
    class Program
    {
        public void Star(Rabbit rabbit, Dog dog)
        {
            double count = 0;
            double dogDistance = Math.Sqrt((dog.locationX - rabbit.locationX) * (dog.locationX - rabbit.locationX) + (dog.locationY - rabbit.locationY) * (dog.locationY - rabbit.locationY));
            Console.WriteLine("兔子离自己的窝距离为: {0}", rabbit.RabbitDistance);
            Console.WriteLine("猎犬离兔子的距离为:{0}\n", dogDistance);
            while (dog.dogWin == false && rabbit.rabbitWin == false) {
           
                    rabbit.RabbitDistance = rabbit.RabbitDistance - rabbit.speed;

                    rabbit.y1 = rabbit.speed * rabbit.sina;
                    rabbit.x1 = Math.Sqrt((rabbit.speed * rabbit.speed) - (rabbit.y1 * rabbit.y1));
                    rabbit.locationY = checked(rabbit.locationY - rabbit.y1);
                    rabbit.locationX = checked(rabbit.locationX - rabbit.x1);

                    Console.WriteLine("兔子已跑至坐标: ({0},{1})", rabbit.locationX, rabbit.locationY);
                    Console.WriteLine("兔子离自己的窝距离为: {0}", rabbit.RabbitDistance);
                    Debug.WriteLine("rabbit:({0},{1})", rabbit.locationX, rabbit.locationY);
                    Debug.WriteLine("dog:({0},{1})", dog.locationX, dog.locationY);

                    dogDistance = Math.Sqrt((dog.locationX - rabbit.locationX) * (dog.locationX - rabbit.locationX) + (dog.locationY - rabbit.locationY) * (dog.locationY - rabbit.locationY));
                    dog.sina = Math.Abs(dog.locationY - rabbit.locationY) / dogDistance;
                    Debug.WriteLine("dog.sina:{0}", dog.sina);

                    if (rabbit.locationX <= dog.locationX && rabbit.locationY >= dog.locationY)
                    {
                        dog.y1 = dog.speed * dog.sina;
                        dog.x1 = Math.Sqrt(((dog.speed * dog.speed) - (dog.y1 * dog.y1)));
                        dog.locationX -= dog.x1;
                        dog.locationY += dog.y1;
                    }
                    else if (rabbit.locationX >= dog.locationX && rabbit.locationY >= dog.locationY)
                    {
                        dog.y1 = dog.speed * dog.sina;
                        dog.x1 = Math.Sqrt(((dog.speed * dog.speed) - (dog.y1 * dog.y1)));
                        dog.locationX += dog.x1;
                        dog.locationY += dog.y1; 
                    }
                    else if (rabbit.locationX <= dog.locationX && rabbit.locationY <= dog.locationY)
                    {
                        dog.y1 = dog.speed * dog.sina;
                        dog.x1 = Math.Sqrt(((dog.speed * dog.speed) - (dog.y1 * dog.y1)));
                        dog.locationX -= dog.x1;
                        dog.locationY -= dog.y1;
                    }
                    else if (rabbit.locationX >= dog.locationX && rabbit.locationY <= dog.locationY)
                    {
                        dog.y1 = dog.speed * dog.sina;
                        dog.x1 = Math.Sqrt(((dog.speed * dog.speed) - (dog.y1 * dog.y1)));
                        dog.locationX += dog.x1;
                        dog.locationY -= dog.y1;
                    }

                    dogDistance = Math.Sqrt((dog.locationX - rabbit.locationX) * (dog.locationX - rabbit.locationX) + (dog.locationY - rabbit.locationY) * (dog.locationY - rabbit.locationY));
                    Console.WriteLine("猎犬已跑至坐标: ({0},{1})", dog.locationX, dog.locationY);
                    Console.WriteLine("猎犬离兔子的距离为:{0}\n", dogDistance);
                    count++;
                    if ((rabbit.locationX == 0 && rabbit.locationY == 0) || rabbit.RabbitDistance == 0)
                    {
                        rabbit.rabbitWin = true;
                        Console.WriteLine("The rabbit win for {0} seconds !",count/20);
                    }
                    else if (dogDistance <= 0.02) {
                        dog.dogWin = true;
                        Console.WriteLine("The dog win for {0} seconds !", count/20);
                    }
            }
        }

        static void Main(string[] args)
        {
            Program newStar = new Program();
            Rabbit theRabbit = new Rabbit(8.0,3.0, 1);
            Dog theDog = new Dog(16.0, 2.0, 1);
            theDog.speed /= 20.0;
            theRabbit.speed /= 20.0;
            Debug.WriteLine("rabbit.sina:{0}\n", theRabbit.sina);
            Console.WriteLine("兔子的坐标:({0},{1}), 速度:{2}", theRabbit.locationX, theRabbit.locationY, theRabbit.speed*20);
            Console.WriteLine("猎犬的坐标:({0},{1}), 速度:{2}\n", theDog.locationX, theDog.locationY, theDog.speed*20);

            Console.WriteLine("开始计算...\n");
            newStar.Star(theRabbit, theDog);

            Console.ReadKey();
        }
    }
}

C#写的，会C……

收到的鲜花

TonyDeng 于 2011-10-02 14:44 送鲜花 10朵附言：原创内容辛苦了！得看看C#怎么测试这个程 ...

2011-10-02 14:34

q332010372

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注　册：2010-7-27

第 40 楼

得分:0

还没学windows窗体，自己不能测试，总感觉有地方写错了。

[ 本帖最后由 q332010372 于 2011-10-2 16:14 编辑 ]

2011-10-02 16:10