Question

我需要为我的C＃课制作游戏。我决定使用Battleships，这是一款非常简单的游戏。我有一个Dictionary<string, string>，其中包含所有电路板插槽（A-J，1-10）的值（例如，A5，F3，J6）。我有一个方法可以重置这些键，但先检查它是否为空（我会在init中使用它来实际先将键添加到字典中）。如果是，则它在for循环内使用for循环（一个用于字母，一个用于数字），用于添加键（A1，A2，A3 ...，B1，B2， B3 ......等）。我添加了一些调试代码，显示密钥中的内容（我使用for变量i为密钥构造一个字符串）。它工作正常（例如：添加值 - ＆gt; BoardPieces.Add(KeyToAdd, i.ToString());然后读取值 - ＆gt; Console.WriteLine("Added key to {0} -> {1}", KeyToAdd, BoardPieces[KeyToAdd]);。它可以工作！但是，当程序返回方法并返回Main()时，当我尝试检查词典中的值时，它表明没有任何东西 Source Code＆lt; - 不确定要放在这里的代码，所以我把源代码（第81行的相关方法）

Answer 1

返回Main方法时它为空的原因是此方法包含一个在ResetBoard（）中初始化的实例的单独实例。

我认为您可能想在Game类中使用单个Variables实例，并从那里访问它。

这看起来像是：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Net;
using System.Net.Sockets;

namespace Battleships
{
    class ReadWrite
    {
        public void GetUsername()
        {

        }
    }
    class Variables
    { // Variables for the game - win, lose, board slots, user names, highscores
        public volatile Dictionary<string, string> BoardPieces = new Dictionary<string, string>(); // board slots like A1, D6 etc.
        private string username;
        private string settingsDirectory;
        private string settingsFile;
        public string _setDir
        {
            get
            {
                return settingsDirectory;
            }
            set
            {
                settingsDirectory = value;
            }
        }
        public string _setFile
        {
            get
            {
                return settingsFile;
            }
            set
            {
                settingsFile = value;
            }
        }
        public string _user
        {
            get
            {
                return username;
            }
            set
            {
                username = value;
            }
        }
    }
    class Game
    {
        private Variables vars = new Variables();

        public Variables _vars
        {
            get
            {
                return vars;
            }
            set
            {
                vars = value;
            }
        }


        public void DrawBoard() // Board should be 10x10 (1-10, A-J)
        { // should be A | B | C | D etc.
            //Console.WriteLine("   | A | B | C | D | E | F | G | H ");
            //Console.WriteLine("-----------------------------------");
            //Console.WriteLine(" 1 | {0} | {1} | {2} | {3} | {4} | {5} | {6} | {7} ");
            // test code:
            for (int i = 0; i < 8; i++)
            {
                if (i == 0)
                {
                    Console.WriteLine("   | A | B | C | D | E | F | G | H | I | J ");
                    Console.WriteLine("-------------------------------------------");
                }
                else
                { // {0} = 1-10, lines of the board itself
                    Console.WriteLine("I would've written lines 1-10");
                    //Console.WriteLine(" {0} | {1} | {2} | {3} | {4} | {5} | {6} | {7} | {8} ", i);
                    //Console.WriteLine("-------------------------------------------");
                }
            }
        }
        public void ResetBoard()
        {
            //if (vars.BoardPieces.Count == 0)
            if (true)
            {
                for (int i = 1; i <= 10; i++) // letters A-J
                {
                    for (int n = 1; n <= 10; n++)
                    {
                        Console.WriteLine("Processing n = {0}", n);
                        string KeyToAdd = ((char)(i + 64)).ToString() + n;
                        //Console.WriteLine("The character printed is {0}", (char)(i + 65));
                        vars.BoardPieces.Add(KeyToAdd, i.ToString());
                        // Console.WriteLine("Written {0} to BoardPieces[{1}]", i, KeyToAdd);
                        Console.WriteLine("The current value in BoardPieces[{0}] is {1}", KeyToAdd, vars.BoardPieces[KeyToAdd]);
                    }
                }
            }
        }

        static void Main(string[] args)
        {
            Game prog = new Game();
            prog.DrawBoard();
            prog.ResetBoard();
            prog.DrawBoard();
            foreach (KeyValuePair<string, string> keyvalue in prog._vars.BoardPieces)
            {
                Console.WriteLine("Key: {0}\t Value: {1}", keyvalue.Key, keyvalue.Value);
            }
            if (prog._vars.BoardPieces.Count == 0)
            {
                Console.WriteLine("No keys found!");
            }
            Console.ReadKey();
        }
    }
}

字典添加不保存

1 个答案: