Question

我正在尝试计算给定单词的字母。我卡在最后。我不知道如何计算这些字母。

static void Main(string[] args)
    {
        Console.WriteLine("Enter a word:");
        string kelime = Console.ReadLine();

        int numberofLetters = kelime.Length;

        Console.WriteLine("Your word has {0} characters", numberofLetters);

        for (int i = 0; i < numberofLetters; i++)
        {
            if
        }
    }

Answer 1

您应该存储已处理的字母以及处理它们的次数。一个很好的选择，它将是一个字典，键入字母和值，你发现这封信的时间。

var lettersDictionary = new Dictionary<char, int>();
for (int i = 0; i < numberofLetters; i++)
{
    var currentLetter = kelime[i];
    if(lettersDictionary.ContainsKey(currentLetter))
    {
        // The dictionary contains the currentLetter. 
        // So we increase the times we found it by 1.
        lettersDictionary[currentLetter] += 1;
    }
    else
    {
        // The dictionary doesn't contain the currentLetter.
        // So we add the new key with the value of 1.
        lettersDictionary.Add(currentLetter,1);
    }
}

完成上述操作后，您可以构建所需的输出，如下所示：

var keyValues = lettersDictionary.Keys.Select(key=>$"{key}: {lettersDictionary[key]}");
var output = string.Join(",", keyValues);

兜售给定单词的字母

1 个答案: