Question

我试图创建一个方法来将字符串传递给方法，然后我想显示字符串中的单词数。该字符串是文本框中的用户输入。

private void button1_Click(object sender, EventArgs e)
{
   countMethod();

}
private string countMethod()
{
    String text = textBox1.Text.Trim();
    int wordCount = 0, index = 0;

    while (index < text.Length)
    {
        // check if current char is part of a word
        while (index < text.Length && Char.IsWhiteSpace(text[index]) == false)
            index++;

        wordCount++;

        // skip whitespace until next word
        while (index < text.Length && Char.IsWhiteSpace(text[index]) == true)
            index++;
    }
    return MessageBox.Show(wordCount.ToString());
}

编辑：

我在方法中添加了一个参数。循环完成后，将wordCount发送到字符串。我尝试了几次，它的工作原理。我是编程的新手，有没有理由说这不会起作用或应该采取另一种方式呢？感谢

private void button1_Click(object sender, EventArgs e)
{
   string userInput = textBox1.Text;
   countMethod(userInput);


}
private string countMethod(string input)
{
    string text = textBox1.Text.Trim();
    int wordCount = 0, index = 0;

    while (index < text.Length)
    {
        // check if current char is part of a word
        while (index < text.Length && Char.IsWhiteSpace(text[index]) == false)
            index++;

        wordCount++;

        // skip whitespace until next word
        while (index < text.Length && Char.IsWhiteSpace(text[index]) == true)
            index++;
    }
    string total = wordCount.ToString();
    MessageBox.Show("The total words in this string are: " +total);
    return total;
}

Answer 1

有一种更简单的方法！

private void button1_Click(object sender, EventArgs e)
{
    var wordCount = CountWords(textBox1.Text);
    MessageBox.Show(wordCount.ToString());

}
private int CountWords(string input)
{
    var separators = new[] { ' ', '.' };
    var count = input.Split(separators, StringSplitOptions.RemoveEmptyEntries).Length;
    return count;
}

在separators数组中添加/删除所需的分隔符。

Answer 2

尝试使用扩展方法。这是个好主意。

public static class MyExtentionClass
{
    public static int WordCount(this string str)
    {
        var separators = new[] { ' ', '.', ',' };
        var count = str.Split(separators, StringSplitOptions.RemoveEmptyEntries).Length;

        return count;
    }
}

例如：

MessageBox.Show(textBox1.Text.WordCount());

Answer 3

拆分白色空格然后计算

int wordCount = textBox1.Text.Trim().Split(" ").Count;

无法显示方法Word计数器

3 个答案: