Question

我已经完成了所有代码，但是需要一些帮助来使转换后的数组正确显示在wordListBox中。任何帮助，将不胜感激。我的代码在下面列出，并且string []一词在类级别中声明。

    private void Convert(string[] wordArray, int count)
    {
        //Convert numbers
        for (int index = 0; index < count; index++)
        {
            if (numbers[index] == 1)
            {
                wordArray[index] = "one";
            }
            else if (numbers[index] == 2)
            {
                wordArray[index] = "two";
            }
            else if (numbers[index] == 3)
            {
                wordArray[index] = "three";
            }
            else if (numbers[index] == 4)
            {
                wordArray[index] = "four";
            }
            else if (numbers[index] == 5)
            {
                wordArray[index] = "five";
            }
            else if (numbers[index] < 1)
            {
                wordArray[index] = "lower";
            }
            else
            {
                wordListBox.Items.Add("higher");
            }
        }
    }
    private void ConvertButton_Click(object sender, EventArgs e)
    {
        wordListBox.Items.Clear();
        Convert(word, count);
        wordListBox.Items.Add(word);
    }

Answer 1

对于变量List<string>和方法参数string[]，我将使用word而不是wordArray，因此不必初始化数组大小。在ConvertButton_Click中，您缺少一个foreach循环，该循环遍历wordArray中的所有元素并将它们添加到wordListBox中。这是一个示例：

int[] numbers = { -5, 3, 6, 9, -2, 1, 0, 4};

int count = 8;

List<string> word = new List<string>();

private void Convert(List<string> wordArray, int count)
{

    //Convert numbers
    for (int index = 0; index < count; index++)
    {
        if (numbers[index] == 1)
        {
            wordArray.Add("one");
        }
        else if (numbers[index] == 2)
        {
            wordArray.Add("two");
        }
        else if (numbers[index] == 3)
        {
            wordArray.Add("three");
        }
        else if (numbers[index] == 4)
        {
            wordArray.Add("four");
        }
        else if (numbers[index] == 5)
        {
            wordArray.Add("five");
        }
        else if (numbers[index] < 1)
        {
            wordArray.Add("lower");
        }
        else
        {
            wordArray.Add("higher");
        }
    }
}
private void ConvertButton_Click(object sender, EventArgs e)
{
    wordListBox.Items.Clear();
    Convert(word, count);
    foreach (var item in word)
    {
        wordListBox.Items.Add(item);
    }
}

结果：

Answer 2

尝试：

private void ConvertButton_Click(object sender, EventArgs e)
    {
        wordListBox.Items.Clear();
        Convert(word, count);
        wordListBox.Items.AddRange(word);
    }

获取转换后的数组以显示在列表框中

2 个答案: