懒人王给了个有关测试的东西

TDD by example (1) -- 挑战

没时间搞测试，仅仅搞了个游戏实现出来。希望别让懒人王测出太多毛病。呵呵

警告一下所有同行哦，程序功能多了以后，会有很多异常参数和情况的，不能太想当然就去写代码的。

我这个程序主要是在部分位置尝试使用了Linq技术

另外一个闪光点么就是在10个数字里取4个的运算是我自己发明的，在可抽取状态在整型数的可用范围内很管用的。

如果有啥意见尽管提哦，让我好提高点水平。

代码下载

namespace 猜数字
{
    class Program
    {
        static void Main(string[] args)
        {
            bool go_on=true ;
            Console.WriteLine("欢迎进入猜数字游戏。");
            while (go_on)
            {
                go_on = Play();
            }
            Console.WriteLine("谢谢使用");

        }

        private static bool Play()
        {
            bool end=false;
            int count = 6;
            Console.WriteLine("新的一局开始了");
            int rand = new Random().Next(1,5041);
            List<char> list=Enumerable.Range(48, 10).Select(item=>(char)item).ToList();
            List<int> point = new List<int>();
            point.Add(rand /  504);
            point.Add((rand - point[0] * 504) / 56);
            point.Add((rand - point[0] * 504 - point[1] * 56) / 7);
            point.Add(rand - point[0] * 504 - point[1] * 56 - point[2] * 7);

            string question="";
            for (int i = 0; i < 4; i++)
            {
                question+=list[point[i]];
                list.RemoveAt(point[i]);
            }

            StringBuilder builder = new StringBuilder();
            builder.AppendLine("您的输入\t评估结果");
            while (count > 0 && end == false)
            {
                Console.WriteLine("输入你的选择,退出本局请按X或x：");

                string input = Console.ReadLine();
                if (Checkinput(input) == true)
                {
                    string ans = Validate(input, question);
                    builder.Append(input);
                    builder.Append("\t\t");
                    builder.AppendLine(ans);

                    Console.WriteLine(builder.ToString());
                    if (ans == "4A0B")
                    {
                        end = true;
                    }
                    count--;
                }
                else
                {
                    if (input.ToLower() == "x")
                    {
                        break;
                    }
                    else
                    {
                        Console.WriteLine("输入错误，请重新输入。");
                    }
                }
            }
            if(count>0&& end==true)
            {
                Console.WriteLine("你胜利了！");
            }
            else if (count < 0 && end == false)
            {
                Console.WriteLine("你失败了了！");
            }
            Console.WriteLine("答案是{0}",question);
            Console.WriteLine("是否继续新游戏？按X或x退出");
            char c = (char)Console.Read();
            Console.ReadLine();
            return c.ToString().ToLower() != "x";
        }

        private static string Validate(string input, string question)
        {
            char[] arr = input.ToCharArray();

            int a=input.Select((c, i) =>new { Value=(c==question[i])}).Count(item=>item.Value==true);

            int b = input.Select((c, i) => new { Value = (question.Contains(c)) }).Count(item => item.Value == true);

            return string.Format("{0}A{1}B",a,b-a);
        }

        private static bool Checkinput(string input)
        {
            if (input.Length != 4)
                return false;

            char[] arr=input.ToCharArray();

            if(arr.Where(item=>item<'0' || item>'9').Count()>1)
                return false;

            if (arr
                .GroupBy(item => item)
                .Select(g => new { Char = g.Key, Count = g.Count() })
                .Where(item => item.Count > 1)
                .Count() > 0)
                return false;

            return true;
        }
        
    }
}