c# 获取docx中的内容

 /// <summary>
        /// 打开docx显示内容
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void button1_Click(object sender, EventArgs e)
        {
            //打开指定的xlsx文件
            //Microsoft.Office.Interop.Excel.Application excel = new Microsoft.Office.Interop.Excel.Application();
            //Microsoft.Office.Interop.Excel.Workbook book = excel.Application.Workbooks.Add("D:\\aa.xlsx");
            //excel.Visible = true;

            //打开指定的docx文件并获取值
            OpenFileDialog open = new OpenFileDialog();
            open.Filter = "文档(*.doc;*.docx)|*.doc;*.docx";//类型文档
            if (open.ShowDialog() == DialogResult.OK)
            {
                string path = open.FileName;//当前文件的路径
                using (Package package = Package.Open(path))
                {
                    Uri docx = new Uri("/word/document.xml", UriKind.Relative);
                    PackagePart docxPart = package.GetPart(docx);

                    XmlDocument docxXmlDocument = new XmlDocument();

                    docxXmlDocument.Load(docxPart.GetStream());
                    //StreamWriter write = new StreamWriter("D:\\abc.txt");
                    //MessageBox.Show("success");
                    this.listBox1.Items.Add(docxXmlDocument.InnerText.ToString());
                    this.textBox1.Text = docxXmlDocument.InnerText.ToString() + "\r\n";
                }
            }
            //读取pdf例子

            //   pdf2txt(new FileInfo(@"D:\\pdf.pdf"),new FileInfo(@"D:\\abc.txt"));
        }