猜數字遊戲.cs

using System;

class Untitled
{
	static void Main(string[] args)
	{
		int _count = 15;
		int countA = 0, countB= 0;
		bool win = false;
		bool needReInput = false;
		
		int[] ans = new int[4];
		Random rand = new Random();
		
		for (int i = 0; i < 4; ++i)
		{
			ans[i] = rand.Next(10);
			//Console.WriteLine(i + " - " + ans[i]);
			for (int j = 0; j < i; ++j)
			{
				if (ans[i] == ans[j])
				{
					--i;
				}
			}
		}
		
		Console.WriteLine(String.Format("ANS：{0}{1}{2}{3}", ans[0], ans[1], ans[2], ans[3]));
		
		for (int i = 0; i < _count; ++i)
		{
			countA = 0;
			countB = 0;
			needReInput = false;
			Console.Write("{0:d2} 輸入數字：", i+1);
			var inputStr = Console.ReadLine();
			//Console.WriteLine(inputStr);
			if (inputStr.Length != 4)
			{
				needReInput = true;
				Console.WriteLine("!請輸入四位數!");
			}
			else
			{
				for (int m = 1; m < 4 && !needReInput; ++m)
				{
					if (!Char.IsNumber(inputStr[m]))
					{
						needReInput = true;
						Console.WriteLine("!請輸入數字!");
					}
					else
					{
						for (int n = 0; n < m && !needReInput; ++n)
						{
							if (inputStr[m] == inputStr[n])
							{
								needReInput = true;
								Console.WriteLine("!請輸入不重複之四位數!");
							}
						}
					}
				}
			}
			
			if (needReInput)
			{
				--i;
				continue;
			}
			
			for (int m = 0; m < 4; ++m)
			{
				for (int n = 0; n < 4; ++n)
				{
					if(ans[m] == (inputStr[n] - '0'))
					//if (ans[m] == int.Parse(inputStr[n].ToString()))
					{
						if (m == n)
						{
							++countA;
						}
						else
						{
							++countB;
						}
					}
				}
			}
			
			Console.WriteLine("{0}A{1}B", countA, countB);
			
			if (countA == 4)
			{
				win = true;
				Console.WriteLine("Win");
				break;
			}
		}
		if(!win)
		{
			Console.WriteLine("Gameover");
		}
	}
}