Question

好吧，所以我正在制作一个挂人游戏（Lame，我知道，但我必须'从某个地方开始）。我已成功将约30个随机单词从文本文件中拉入变量，并可以在屏幕上以随机顺序正确显示单词（只是为了测试并确保变量以随机顺序获取整个单词）。

但是我需要取出该字符串并将其分解为单个字符，以便将用户“猜错”的字母“空白”。我假设一个数组是最好的方法 - 加上一个while循环，它将在字符！= null时运行。

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Hangman
{
class Program
{
    static void Main(string[] args)
    {
        String[] myWordArrays = File.ReadAllLines("WordList.txt");
        Random randomWord = new Random();
        int lineCount = File.ReadLines("WordList.txt").Count();            
        int activeWord = randomWord.Next(0, lineCount);

        /*CharEnumerator activeWordChar = activeWord; --- I have tried this, 
        but it says "Cannot implicitly convert type 'int' to 'System.CharEnumerator' 
        --- while redlining "activeWord." */

        /*CharEnumerator activeWordChar = activeWord.ToString 
        -- I have tried this but it says "Cannot convert method group 'ToString' to 
        non-delegate type 'System.CharEnumerator'. Did you intend to invoke the method?

         I also tried moving the declaration of activeWordChar below the 'writeline' 
         that displays the word properly to the console. 

         I have even tried to create a Char[] activeWordChar = activeWord.toCharArray; But this doesn't work either. 
         */            

        //I'm using this writeline "the word for this game is: " ONLY to test that the 
        //system is choosing random word **end comment

        Console.WriteLine("The Word for this game is: " + myWordArrays[activeWord]);



        //Console.WriteLine("The Characters are like this: " + activeWordChar[]); 
        //my attempt at printing something, but it doesn't work. :(
        Console.ReadLine();


    }


  }
}

我愿意参考，以便自己弄清楚，但我有点'坚持到这里。

另外，如何关闭我打开的文件，以便以后可以在程序中访问它？我只学习了'variable.Close（）;'的StreamReader（“filename”）方式。 - 但这不适用于此。

修改

为什么有人会把这个问题投反对票超出我的意思。洛尔

Answer 1

您可以通过索引访问字符串中的任何字符，因此您可以将字符串视为字符数组：

例如，像这个代码段：

string word = "word";
char w1 = word[0];
Console.WriteLine(w1);

Answer 2

这里有几点（首先，你有一个良好的开端）：

您不必要地重新读取文件以获取行数。您可以使用myWordArrays.Length设置lineCount变量
关于关闭文件的问题，按MSDN File.ReadAllLines()完成阅读后会关闭文件，因此您可以使用已有的文件。

在按索引访问和访问其Length属性方面，字符串本身可以像数组一样对待。还有能力隐式迭代它：

foreach (char letter in myWordArrays[activeWord])
{
// provide a blanked-out letter for each char
}

Answer 3

您可以按如下方式简化代码。以前，您的activeWord变量是一个整数，因此无法转换为字符数组。

static void Main(string[] args)
{
    String[] myWordArrays = File.ReadAllLines("WordList.txt");
    Random random = new Random();           
    string activeWord = myWordArrays[random.next(myWordArrays.Length)];
    char[] chars = activeWord.ToCharArray();
}

但是，C＃中的字符串可以视为可枚举对象，因此如果需要改变字符串的部分内容，则应该只使用字符数组。

Answer 4

感谢Sven，我能够弄明白，我也可以添加一些东西！我将这篇文章发布给其他新手，以便从newb的角度理解：

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Hangman
{
class Program
  {
    static void Main(string[] args)
    {
        printWord();                                          


    }

    /*I created a method to perform this, so that I can have the program stay open for 
    either 1) a new game or 2) just to see if I could do it. It works!*/

    private static void printWord()
    {
        String[] myWordArrays = File.ReadAllLines("WordList.txt");
        Random randomWord = new Random();
        //int lineCount = File.ReadLines("WordList.txt").Count();

        //The line below fixed my previous issue of double-reading file            
        int activeWord = randomWord.Next(0, myWordArrays.Length);

        string userSelection = "";

        Console.WriteLine("Are you Ready to play Hangman? yes/no: ");
        userSelection = Console.ReadLine();
            if(userSelection == "yes")
            {
                /*This runs through the randomly chosen word and prints an underscore in 
                place of each letter - it does work and this is what fixed my 
                previous issue - thank you Sven*/

                foreach(char letter in myWordArrays[activeWord])
                {
            Console.Write("_ ");

                }

                //This prints to the console "Can you guess what this 'varyingLength' letter word is?" - it does work.
                Console.WriteLine("Can you guess what this "+ myWordArrays[activeWord].Length +" letter word is?");
                Console.ReadLine();
            } 
            //else if(userSelection=="no") -- will add more later

    }


  }
}

如何将随机字符串数组'word'转换为由字符串C＃组成的数组？

4 个答案: