Question

我有一个名为failas.txt的文件。它包含立陶宛语的文本。我为它做了编码1257所以它可以读立陶宛字母。

现在我所要做的就是为该文件中使用的每个立陶宛字母制作一个数组。

所有这些字母都在字符串p = "AĄBCČDEĘĖFGHIĮYJKLMNOPRSŠTUŲŪVZŽ";

中

数组应该显示每个字母在文本中重复的次数，并将这些结果写入名为rezultatai.txt的新txt文件。所以代码是这样的：

using System;
using System.Linq;
using System.Globalization;
using System.Collections.Generic;
using System.Collections;
using System.IO; skirta biblioteka
using System.Text;
using System.Threading;
class Program 
{
static void Main()
    {

    string failas = "failas.txt"; 
    string rodymas = File.ReadAllText(failas, Encoding.GetEncoding(1257)); 
    Console.OutputEncoding = Encoding.UTF8;
    Console.WriteLine(rodymas); 
    char[] masyvas = rodymas.Where(Char.IsLetter).OrderBy(Char.ToLower).ToArray(); 
    foreach (char c in masyvas)

    {
        Console.Write(c + ",");
    }
    string p = "AĄBCČDEĘĖFGHIĮYJKLMNOPRSŠTUŲŪVZŽ";
    failas = failas.ToUpper();
    Dictionary<char, int> dict = new Dictionary<char, int>();

    foreach (char c in p) dict.Add(c, 0);
    foreach (char c in failas)
    {
        int val;
        if (dict.TryGetValue(c, out val)) dict[c] = val + 1;
    }

    //write to a file..
    foreach (KeyValuePair<char, int> item in dict)
    {
        if (item.Value > 0) Console.WriteLine("Character {0}, No of Occurences = {1}", item.Key, item.Value);
        File.AppendAllText("rezultatai.txt", item.Value + Environment.NewLine);
    }
    Console.WriteLine("Sum = {0}", dict.Sum(x => x.Value));
    Console.ReadKey();

然而，不知何故，它只返回带字母A，F，I，L，S，T的输出。像这样：

Character A, No of Occurences = 2
Character F, No of Occurences = 1
Character I, No of Occurences = 1
Character L, No of Occurences = 1
Character S, No of Occurences = 1
Character T, No of Occurences = 2

如前所述，信件应为：

AĄBCČDEĘĖFGHIĮYJKLMNOPRSŠTUŲŪVZŽ

另外，当我打开 rezultatai.txt 文件来检查附加值时，它只包含一长串数字：

Answer 1

然而，不知何故，它只返回带字母A，F，I，L，S，T的输出。像这样：

foreach (char c in failas)

迭代文件名，即"failas.txt"，这应该是实际文件的文本。

foreach (char c in rodymas)
foreach (char c in masyvas)  // Possibly the char array.. not sure which..

另外，当我打开rezultatai.txt文件来检查附加值时，它只包含一长串数字：

是的，你追加KeyValuePair中值为整数的值，这可能与输出到控制台的值相同。

Answer 2

.NET具有非常强大的功能，如LINQ和CultureInfo系统。您可以使用两者来执行以下操作：

using System;
using System.Globalization;
using System.IO;
using System.Linq;
using System.Text;

internal class Program
{
  private static void Main()
  {
    var cultureLithunia = new CultureInfo("lt-LT");
    var textInfoLithunia = cultureLithunia.TextInfo;

    string requested = textInfoLithunia.ToUpper("AĄBCČDEĘĖFGHIĮYJKLMNOPRSŠTUŲŪVZŽ");

    string content = File.ReadAllText("failas.txt", Encoding.GetEncoding(textInfoLithunia.ANSICodePage));

    var characters = content.GroupBy(c => c);

    var charactersYouWant = characters.Where(c => requested.Contains(textInfoLithunia.ToUpper(c.Key)));

    var linesYouWantToOutput = charactersYouWant.Select(c => string.Format("Character {0}, No of Occurences = {1}", c.Key, c.Count()));

    File.WriteAllLines("rezultatai.txt", linesYouWantToOutput);

    Console.WriteLine("Done");
    Console.ReadKey();
  }
}

如果你想要所需文字中的所有字符，那就更复杂了：

using System;
using System.Globalization;
using System.IO;
using System.Linq;
using System.Text;

internal class Program
{
  private static void Main()
  {
    var cultureLithunia = new CultureInfo("lt-LT");
    var textInfoLithunia = cultureLithunia.TextInfo;

    string requested = textInfoLithunia.ToUpper("AĄBCČDEĘĖFGHIĮYJKLMNOPRSŠTUŲŪVZŽ");

    string content = File.ReadAllText("failas.txt", Encoding.GetEncoding(textInfoLithunia.ANSICodePage));

    var characters = content.GroupBy(c => c);

    var charactersYouWant = requested.Select(c => new { Key = c, Count = characters.Where(cc => textInfoLithunia.ToUpper(cc.Key) == c).Select(group => group.Count()).FirstOrDefault() });

    var linesYouWantToOutput = charactersYouWant.Select(c => string.Format("Character {0}, No of Occurences = {1}", c.Key, c.Count));

    File.WriteAllLines("rezultatai.txt", linesYouWantToOutput);

    Console.WriteLine("Done");
    Console.ReadKey();
  }
}

来自具有特定值

2 个答案: