將陣列做為Dictionary的元素問題-有解無憂

將一維陣列、二維陣列和交錯陣列做為元素放入Dictionary，欲使用用自定義的FromKeyToValue函式根據鍵獲取值，寫了一段代碼，但是以下代碼問題不少。
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApp1
{
    class MyArray
    {
        public int no;
        public string[] numbers;
        public string[,] names;
        public string[][] scores;

        public MyArray()
        {
            this.no = 0;
        }

        public MyArray(string[] numbers)
        {
            this.no = 1;
            this.numbers = numbers;
        }
        public MyArray(string[,] names)
        {
            this.no = 2;
            this.names = names;
        }
        public MyArray(string[][] scores)
        {
            this.no = 3;
            this.scores = scores;
        }

        void FromKeyToValue(string key)
        {
            Dictionary<string, MyArray> Dic = new Dictionary<string, MyArray>();

            string[] mf3;

            string[,] siblings;

            string[][] renyudi;

            MyArray v1 = Dic[key];
            int No = v1.no;

            switch (No)
            {
                case 1:

                    foreach (string i in mf3) { System.Console.WriteLine(i); }
                    break;
                case 2:

                    foreach (string i in siblings) { Console.Write("{0} ", i); }
                    break;
                case 3:

                    foreach (string[] i in renyudi)
                    {
                        foreach (string j in i)
                        {
                            Console.WriteLine(j);
                        }
                    }
                    break;
                default:
                    Console.WriteLine("出現錯誤！");
                    break;
            }
        }

        class Program
        {
            static void Main(string[] args)
            {
                Dictionary<string, MyArray> Dic = new Dictionary<string, MyArray>();

                string[] mf3 = { "c", "c++", "c#" };
                MyArray myArray1 = new MyArray(mf3);
                Dic.Add("趙", myArray1);

                string[,] siblings = new string[,] { { "Mike", "Amy" }, { "Mary", "Albert" } };
                MyArray myArray2 = new MyArray(siblings);
                Dic.Add("錢", myArray2);

                string[][] renyudi = new string[2][] { new string[] { "Mike", "Amy", "Albert" }, new string[] { "Beijing", "Shanghai", "Tianjin", "Guangzhou", "Xiamen" } };
                MyArray myArray3 = new MyArray(renyudi);
                Dic.Add("孫", myArray3);

                MyArray.FromKeyToValue("錢");

            }
        }
    }
}

嚴重性代碼說明專案檔案行禁止顯示狀態
錯誤 CS0165 使用了未賦值的區域變數“mf3” ConsoleApp1 E:\Hashmap\自定義函式\ConsoleApp1\ConsoleApp1\Program.cs 56 活動的

嚴重性代碼說明專案檔案行禁止顯示狀態
錯誤 CS0165 使用了未賦值的區域變數“siblings” ConsoleApp1 E:\Hashmap\自定義函式\ConsoleApp1\ConsoleApp1\Program.cs 60 活動的

嚴重性代碼說明專案檔案行禁止顯示狀態
錯誤 CS0165 使用了未賦值的區域變數“renyudi” ConsoleApp1 E:\Hashmap\自定義函式\ConsoleApp1\ConsoleApp1\Program.cs 64 活動的

嚴重性代碼說明專案檔案行禁止顯示狀態
錯誤 CS0120 物件參考對于非靜態的欄位、方法或屬性“MyArray.FromKeyToValue(string)”是必需的 ConsoleApp1 E:\Hashmap\自定義函式\ConsoleApp1\ConsoleApp1\Program.cs 102 活動的

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標籤：C#

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