c# winform Process问题求助

Question

 以下代码遍历文件夹下子文件夹下的PDF文档调用FLASHPAPER进程，为什么在运行到p.WaitForExit();
时不会等待进程运行结束后就继续往下执行代码？
          foreach (FileSystemInfo fsinfo in fsinfos)//遍历子文件夹
                {
                    string full_name = fsinfo.FullName.ToString();
                    string d_name = fsinfo.Name.ToString();
                    string Path_Pdf = full_name + "\\" + d_name + ".pdf";
                    string Out_Path = full_name + "\\" + d_name + ".swf";
                    if (!File.Exists(Path_Pdf))//如果不存在pdf文件
                    {                        
                    }
                    else
                    {
                       Process p = new Process()
                       p.StartInfo.FileName = @"c:\FlashPaper\FlashPrinter.exe";
                       p.StartInfo.Arguments = string.Format("{0} -o {1}", Path_Pdf , Out_Path );
                       p.Start();
                       p.WaitForExit();
                          p.Close();
                          p.Dispose();  
                    }
                }
                MessageBox.Show("转换完毕");
                     
            

Answer 1

我的没有权限问题啊，是winform程序，管理员登陆的

Answer 2

 
p.WaitForExit();
p.Close();中间插入  Thread.Sleep(100); 试试

Answer 3

 
Thread.Sleep(100); 
p.WaitForExit();
p.Close();
还是不行

Answer 4

原来写的一个视频转码程序，支持顺序进程，希望能够帮上你。
                    string ffmpeg = System.Web.HttpContext.Current.Server.MapPath("~/Content/ffmpeg/") + "ffmpeg.exe";
                    string ExportName = System.Web.HttpContext.Current.Server.MapPath(filePath + FileType + "/" + thisDate.ToString().Replace(" ", "") + "/") + randomDateTime + ".jpg";
                    string Command = ffmpeg + "  -i  " + FromName + " -y -s 640*480 -ss 00:00:02 -vframes 1 -an -sameq -f mjpeg " + ExportName;
                    log.Debug("command is :" + Command);
                    uploadFile.PreviewImage = ConfigurationSettings.AppSettings["WebSiteUrl"] + filePath.Replace("~", "") + FileType + "/" + thisDate.ToString().Replace(" ", "") + "/" + randomDateTime + ".jpg";
                    //System.Diagnostics.Process p = new System.Diagnostics.Process();
                    p.StartInfo.FileName = "cmd.exe ";
                    p.StartInfo.WorkingDirectory = System.Web.HttpContext.Current.Server.MapPath(filePath) + FileType + "/" + thisDate.ToString().Replace(" ", "");
                    p.StartInfo.UseShellExecute = false;
                    p.StartInfo.RedirectStandardInput = true;
                    p.StartInfo.RedirectStandardOutput = true;
                    p.StartInfo.RedirectStandardError = true;
                    p.StartInfo.CreateNoWindow = true;
                    //开始执行
                    p.Start();
                    p.StandardInput.WriteLine(Command);
                    p.StandardInput.WriteLine("Exit");
                    p.WaitForExit();
                    p.Close();
                    p.Dispose();

Answer 5

p.WaitForExit();
Thread.Sleep(100); 
p.Close();
在中间，不是在前面