C# 等于语句返回 False

Question

我的 equals if 语句保持 returning false 字母猜测不是第一个字母，有人知道为什么会这样吗？我调试了很多，这就是我发现它 return 是一个错误的布尔语句的原因。我在谷歌上搜索了很多，但没有找到任何启示。前两个 if 语句 return 如果答案长度正确则为真

    using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.IO;

namespace Guess_The_Word
{

    public partial class Form1 : Form
    {
        private int wrongGuesses = 0;
        private int userGuesses;
        private int score = 0;
        private string secretWord = String.Empty;
        private string[] words;
        private string currentWord = string.Empty;
        private string userGuess = string.Empty;
        private string userInput = string.Empty;
        private string randomInput = string.Empty;


        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {



        }

        private void guessBtn_Click(object sender, EventArgs e)
        {
            char[] userInputArray = userInputBox.Text.ToLowerInvariant().ToCharArray();
            char[] currentWordCharArray = currentWord.ToLowerInvariant().ToCharArray();
            //Assume that userInput would never be superior than randomCharArray
            //And contain only one char
            for (int i = 0; i < currentWordCharArray.Length; i++)
            {
                if (userInputArray.Length > 0 && userInputArray.Length > i)
                    if (currentWordCharArray.Length > 0 && currentWordCharArray.Length > i)
                        if (userInputArray[0].Equals(currentWordCharArray[i]))

                {
                    UpdateScore();
                }
            }
            // Clean userInput in form
            userInputBox.Text = string.Empty;

        }


        private void resetGamebtn_Click(object sender, EventArgs e)
        {
            SetUpWords();


        }

        private void SetUpWords()
        {
            string path = (@"C:\commonwords.txt"); // Save the variable path with the path to the txt file
            words = File.ReadAllLines(path);
            int guessIndex = (new Random()).Next(words.Length);
            currentWord = words[guessIndex];
            wordlbl.Text = string.Empty;
            for (int i = 0; i < currentWord.Length; i++)
            {

                wordlbl.Text += "*";

            }
        }

        private void userInputBox_TextChanged(object sender, EventArgs e)
        {

        }

        private void UpdateScore()
        {
            score++;
            scorelbl.Text = Convert.ToString(score);
        }

    }
}

Answer 1

您必须保存生成的值，将for循环改为foreach:

 for (int i = 0; i < randomArray.Length; ++i)
    randomArray[i] = rand.Next(Min, Max);

Answer 2

foreach (int value in randomArray)
{
    rand.Next(Min, Max);
}

并没有按照您的想法行事。

它不是设置那里的值，它只是遍历数组并生成一些随机数（并丢弃它们，因为你没有分配rand.Next 到任何东西）。

您需要将其替换为：

for (var i=0; i < randomArray.Length; i++)
{
    randomArray[i] = rand.Next(Min, Max);
}

Answer 3

你没有用随机数初始化你的数组。改变

foreach (int value in randomArray)
    {
        rand.Next(Min, Max);
    }

至

for (var i=0; i < randomArray.Length; i++) {
    randomArray[i] = rand.Next(Min, Max);
}

Answer 4

您的问题是因为您没有将 rand.Next() 分配给任何值。将您的 foreach 循环改为此 for 循环：

for (int i=0;i<6;i++)
{
    randomArray[i] = rand.Next(Min, Max);
}

您当前的代码所做的是遍历数组中的每个元素（在本例中为 6），调用 rand.Next()，但从不将其分配给任何元素。

C# 等于语句返回 False

C# Equals Statement Returning False

c#

random

foreach

loops

equals