Question

我一直在研究一个项目，我需要在单个行上的文本文件中打印一个单词数组，其位置在数组中。我过去曾使用过streamwriters所以我打算再次使用它，但是我似乎无法编写文本文件。以下是代码：

 public partial class Form2 : Form
{
    string sentence;
    String[] words;
    int a;
    bool wordAppear;
    string textbox2;
    string path;
    public Form2()
    {
        InitializeComponent();
        path = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments);
    }

    private void btn1_Click(object sender, EventArgs e)
    {
        sentence = txt1.Text.ToLower();
        words = sentence.Split();
        a = words.Length;
        MessageBox.Show("Number of Words: " + a);
        StreamWriter sw = new StreamWriter(path + @"\file1000.txt");
        for (int i=0; i < a; i++)
        {
            sw.WriteLine(words[i] + " " + i+1);
        }
    }
}

我的部分任务涉及列出单词首次出现的顺序，例如，如果句子是“我有二十个人有二十个锤子”，那么顺序将是1 2 3 4 5 3 6所以如果有人有任何想法如何做到这一点请你建议他们

Answer 1

这应该有效（假设是ASCII字符串）：

var xs = "I have twenty men with twenty hammers".ToLower().Split();
var memo = new Dictionary<string, int>();

for (var i = 0; i < xs.Length; i++)
{
    var index = 0;

    if(!memo.TryGetValue(xs[i], out index))
        memo.Add(xs[i], i + 1);
}

using(var sw = new StreamWriter(SOME_PATH));
    foreach(var x in xs)
        sw.WriteLine(x + " " + memo[x]);

Answer 2

我认为您需要使用Close（）方法将其包装起来，并且还要稍微处理... WriteLine（）函数。希望这会有所帮助。

    ...
    words = sentence.Split( );
    a = words.Length;
    MessageBox.Show("Number of Words: " + a);
    StreamWriter sw = new StreamWriter(path + @"\file1000.txt");
    for (int i = 0; i < a; i++)
    {
        sw.WriteLine(words[i] + " " + (i + 1).ToString());
    }

    sw.Close();
}

Streamwriter - .txt文件的字符串数组

2 个答案: