C# 操作Word出现多了winword.exe的解决方案

using Word = Microsoft.Office.Interop.Word;

// 创建Word文档 
Word.Application WordApp = null;
Word.Document WordDoc = null;

Object Nothing = System.Reflection.Missing.Value;
WordApp = new Word.ApplicationClass();
WordDoc = WordApp.Documents.Add(ref Nothing, ref Nothing, ref Nothing, ref Nothing);

// Word文件路径
string filename = System.Windows.Forms.Application.StartupPath + "\\test.doc";
string message = "";

try
{
      // 创建Word文档
// ... ...
}
catch (Exception ex)
{
                MessageBox.Show(message = "文件导出异常！" + ex.ToString());
}
finally
 {
                //文件保存
                WordDoc.SaveAs(ref filename, ref Nothing, ref Nothing, ref Nothing, ref Nothing, ref Nothing, ref Nothing, ref Nothing, ref Nothing, ref Nothing, ref Nothing, ref Nothing, ref Nothing, ref Nothing, ref Nothing, ref Nothing);
                WordDoc.Close(ref Nothing, ref Nothing, ref Nothing);

                // Solution-1
                object saveOption = Word.WdSaveOptions.wdDoNotSaveChanges;
                WordApp.Quit(ref saveOption, ref Nothing, ref Nothing);
}

解决方案 二

            try
            {
                if (WordDoc != null)
                {
                    System.Runtime.InteropServices.Marshal.ReleaseComObject(WordDoc);
                    WordDoc = null;
                }
                WordApp.Quit(ref Nothing, ref Nothing, ref Nothing);
            }
            catch
            {
                try
                {
                    if (WordApp != null)
                    {
                        System.Runtime.InteropServices.Marshal.ReleaseComObject(WordApp);
                        WordApp = null;
                    }
                }
                catch (Exception ex1)
                {
                    MessageBox.Show(ex1.ToString());
                }

            }