用C#写一个word文档内容转换成XML的winform程序

在C#中，我们可以使用`DocumentFormat.OpenXml`库来处理Word文档的内容，并将其转换为XML。这是一个简单的WinForm程序示例，它将读取Word文档并保存其内容到XML文件：

using System;
using System.IO;
using DocumentFormat.OpenXml.Packaging;
using DocumentFormat.OpenXml.Wordprocessing;

public partial class MainForm : Form
{
    public MainForm()
    {
        InitializeComponent();
    }

    private void ConvertButton_Click(object sender, EventArgs e)
    {
        if (OpenFileDialog.ShowDialog() == DialogResult.OK)
        {
            string wordFilePath = openFileDialog.FileName;
            string xmlFilePath = Path.ChangeExtension(wordFilePath, ".xml");

            using WordprocessingDocument doc = WordprocessingDocument.Open(wordFilePath, true);
            MainDocumentPart mainDocPart = doc.MainDocumentPart;

            // 获取并保存所有段落的内容
            var paragraphs = mainDocPart.Document.Body.Elements<Paragraph>();
            StringBuilder xmlContent = new StringBuilder();
            foreach (var paragraph in paragraphs)
            {
                xmlContent.AppendLine($"<{paragraph.Tag}>{paragraph.InnerText}</{paragraph.Tag}>");
            }

            File.WriteAllText(xmlFilePath, xmlContent.ToString());

            MessageBox.Show("Word文档已成功转换为XML.");
        }
    }
}