计数元音和辅音 C#

Question

问题

从用户那里输入 1 个字符。它可以是元音或辅音。 用户输入后，它会询问您是否要再次输入字符，是按 Y，否按 N。

当用户说不时，你必须显示输入了多少元音和多少辅音。

请使用 For 循环来做这个问题。我认为必须使用数组。我做了这段代码，它计算元音、辅音和间距。但我不能多次输入。

我的代码没有运行多次。我只能在一行中写一个句子或一个字符，所以它只会计算那个。但我想要求用户再次输入一个字符。

我希望我的代码运行多次，以便用户可以在我解释我的问题时多次输入。

    using System;
public class vowelConsonant
{
    public static void Main()
    {
        int vowels = 0;
        int consonant = 0;
        int space = 0;

        Console.WriteLine("Enter a Sentence or a Character");
        string v = Console.ReadLine().ToLower();

        for (int i = 0; i < v.Length; i++)
            {
                if (v[i] == 'a' || v[i] == 'e' || v[i] == 'i' || v[i] == 'o' || v[i] == 'u')
                {
                    vowels++;
                }

                else if (char.IsWhiteSpace(v[i]))

                {
                    space++;
                }

                else
                {
                    consonant++;
                }
        }

        Console.WriteLine("Your total number of vowels is: {0}", vowels);
        Console.WriteLine("Your total number of constant is: {0}", consonant);
        Console.WriteLine("Your total number of space is: {0}", space);
        Console.ReadLine();
    }
}

Thanks

Answer 1

只需在整个过程中设置一个无限循环。

using System;
public class vowelConsonant
{
    public static void Main()
    {
        // Infinite loop.
        while (true)
        {
            int vowels = 0;
            int consonant = 0;
            int space = 0;

            Console.WriteLine("Enter a Sentence or a Character");
            string v = Console.ReadLine().ToLower();

            for (int i = 0; i < v.Length; i++)
            {
                if (v[i] == 'a' || v[i] == 'e' || v[i] == 'i' || v[i] == 'o' || v[i] == 'u')
                {
                    vowels++;
                }

                else if (char.IsWhiteSpace(v[i]))

                {
                    space++;
                }

                else
                {
                    consonant++;
                }
            }

            Console.WriteLine("Your total number of vowels is: {0}", vowels);
            Console.WriteLine("Your total number of constant is: {0}", consonant);
            Console.WriteLine("Your total number of space is: {0}", space);
        }
    }
}

Answer 2

这个应用程序计算一个句子中的元音和辅音字母。 这是另一种代码行更少的解决方案，理解使用循环和嵌套循环与 char 数组的想法。

Application interface with controls names

namespace Program8_4
{
    public partial class Form1 : Form
    {
        // declare the counter variables in field
        int iNumberOfVowels = 0;
        int iNumberOfConsonants = 0;
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            // call the methods in this event
            GetVowels(txtStringInput.Text);
            GetConsonants(txtStringInput.Text);
            // show the result in a label
            lblOutput.Text = "The number of vowels : " + iNumberOfVowels.ToString() + Environment.NewLine+
                "The number of consonants : " + iNumberOfConsonants.ToString();
            // assign zero the counters to not add the previous number to new number, and start counting from zero again
            iNumberOfVowels = 0;
            iNumberOfConsonants = 0;
        }

        private int GetConsonants(string strFindConsonants)
        {
            // Declare char array to contain consonants letters
            char[] chrConsonants = { 'B', 'C', 'D', 'F', 'G', 'H', 'J', 'K', 'L', 'M', 'N', 'P', 'Q', 'R', 'S', 'T', 'V', 'X',
                'b', 'c', 'd', 'f', 'g', 'h', 'j', 'k', 'l', 'm', 'n', 'p', 'q', 'r', 's', 't', 'v', 'x' };

            // loop to get each letter from sentence
            foreach (char Consonants in strFindConsonants)
            {
                // another nested loop to compare each letter with all letters contains in chrConsonants array
                for (int index = 0; index < chrConsonants.Length; index++)
                {
                    // compare each letter with each element in charConsonants array
                    if (Consonants == chrConsonants[index])
                    {
                        // If it is true add one to the counter iNumberOfConsonants
                        iNumberOfConsonants++;
                    }
                }
            }
            // return the value of iNumberOfConsonants
            return iNumberOfConsonants;
        }

        private int GetVowels(string strFindVowels)
        {
            // Declare char array to contain vowels letters
            char[] chrVowels = { 'a', 'e', 'i', 'o', 'u', 'A', 'E', 'I', 'O','U' };

            // loop to get each letter from sentence
            foreach (char Vowels in strFindVowels)
            {
                // another nested loop to compare each letter with all letters contains in chrVowels array
                for (int index = 0; index < chrVowels.Length; index++)
                {
                    // compare each letter with each element in chrVowels array
                    if (Vowels == chrVowels[index])
                    {
                        // If it is true add one to the counter iNumberOfVowels
                        iNumberOfVowels = iNumberOfVowels+1;
                    }
                }
            }
            // return the value of iNumberOfVowels
            return iNumberOfVowels;
        }
    }
}

Answer 3

我们可以使用 Regex.Matches() 函数简单地找到所需的元音和辅音计数。

下面是工作代码sn-p：

 public static void Main()
   {
       Console.WriteLine("Enter a Sentence or a Character");
       string input = Console.ReadLine().ToLower();

       string vowels = @"[aeiouAEIOU]+"; //regular expression to match vowels
       string consonants = @"[^aeiouAEIOU]+"; //regular expression to match consonants
       string space = @"[\S]+";
       int vowLength = new Regex(vowels).Matches(input).Count;
       int conLength = new Regex(consonants).Matches(input).Count;;
       int spLength = new Regex(space).Matches(input).Count;;

       Console.WriteLine("Your total number of vowels is: {0}", vowLength);
       Console.WriteLine("Your total number of constant is: {0}", conLength);
       Console.WriteLine("Your total number of space is: {0}", spLength);
   }