C＃我正在使用字符串數組，我希望使用“ foreach”顯示它們的列表

Question

我相信除了foreach語句外，我的大部分代碼在大多數情況下都是正確的。 但是由於程序未編譯，我無法對其進行測試。 我將不勝感激，即使我的結構需要進行一些更改，我也將不勝感激。

private static void PickScreen(Human myHuman)
    {
        var tries = 3;
        bool answer = false;
        string choice= "";

        string[] choices = new string[6];


        choices[0] = "Name";
        choices[1] = "Age";
        choices[2] = "Scar Type";
        choices[3] = "Weapon";
        choices[4] = "Hero Status";
        choices[5] = "Potions";

        DisplayNewScreenHeader();

        Console.WriteLine(" What screen would you like to go to?");
        Console.WriteLine();


        foreach (string i in choices)
        {
            Console.WriteLine(" Screen Choice: {0}", choices[]);

        }
        Console.WriteLine();
        Console.WriteLine(" Or you can type in " + "\"Default\"" + "to not have to do any of the query screens and have your character have default settings.");

        while(tries > 0)
        {
             Console.WriteLine(" Choice: ");
             choice = Console.ReadLine();

              if (choice.Equals("name", StringComparison.OrdinalIgnoreCase))
                 {
                        DisplayGetHeroName(myHuman);
                    answer = true;
                 }
              else if (choice.Trim().Equals("age", StringComparison.OrdinalIgnoreCase))
                 {
                        DisplayGetUsersAge(myHuman);
                    answer = true;
                 }
              else if (choice.Trim().Equals("Scar Type", StringComparison.OrdinalIgnoreCase))
                {
                        DisplayGetScar(myHuman);
                 answer = true;
             }
             else if (choice.Trim().Equals("weapon", StringComparison.OrdinalIgnoreCase))
             {
                        DisplayGetWeapon(myHuman);
                 answer = true;
             }
              else if (choice.Trim().Equals("Hero Status", StringComparison.OrdinalIgnoreCase))
             {
                        DisplayGetHeroStatus(myHuman);
                    answer = true;
             }
             else if (choice.Trim().Equals("Potions", StringComparison.OrdinalIgnoreCase))
             {
                        DisplayAddBackpackItems(myHuman);
                    answer = true;
             }
              else if (choice.Trim().Equals("Default", StringComparison.OrdinalIgnoreCase))
              {
                  Console.WriteLine(" Looks like you went with the lazy way.  Anyways go conquer basements, and become ruler of stuff!");
              }
             else 
             {
                 Console.WriteLine(" Dog gone it, yer Missed up a bit tad.");
                 Console.WriteLine();
                 Console.WriteLine(" Try again");
                 tries -= 1;
             }

        }

       if (answer == false)
         {
           DisplayNewScreenHeader();

           Console.WriteLine(" Since you're incompetent you no longer have the option to pick your query screens. They will simply go in order now.");
           DisplayGetHeroName(myHuman);
           DisplayGetUsersAge(myHuman);
           DisplayGetScar(myHuman);
           DisplayGetWeapon(myHuman);
           DisplayGetHeroStatus(myHuman);
           DisplayAddBackpackItems(myHuman);

           DisplayReturnPrompt();
         }


    }

Answer 1

在foreach循環中，隨着循環的繼續，您的變量（在本例中為i ）被設置為枚舉中的每個值。 您需要更改：

foreach (string i in choices)
        {
            Console.WriteLine(" Screen Choice: {0}", choices[]);

        }

至：

foreach (string i in choices)
        {
            Console.WriteLine(" Screen Choice: {0}", i);

        }

Answer 2

您的foreach循環應如下所示，因為i實際上是choices項之一

foreach (string i in choices)
    {
        Console.WriteLine(" Screen Choice: {0}", i);

    }

至於foreach遍歷您的數組， i將有值：

choices[1]
choices[2]
choices[3]
.......
etc

Answer 3

更改

Console.WriteLine（“屏幕選擇：{0}”，options []）;

至

Console.WriteLine（“屏幕選擇：{0}”，i）；