run Metashape with "-r " mode with arg " > c:\log.txt ", can't output logFile

[qq88068100]

run Metashape with "-r " mode , with arg "  > c:\log.txt " ,in my c# program, can't output logFile

this is the main code ,it can't build c:\log.txt automatically.
but is is in the windows cmd ,it can build c:\log.txt automatically.
private void RunPythonScript()
        {
            try
            {
                process.StartInfo.FileName = @"C:\PhotoScanPro\photoscan.exe";
                string sArguments = string.Empty;
                sArguments += @"C:\PhotoScanPro\photoscan.exe -r C:\PhotoScanPro\modules\test.py > C:\log.txt";
                process.StartInfo.Arguments = sArguments;
                process.StartInfo.UseShellExecute = false;
                process.StartInfo.RedirectStandardOutput = true;
                process.StartInfo.RedirectStandardInput = true;
                process.StartInfo.RedirectStandardError = true;
                process.StartInfo.CreateNoWindow = true;
                process.Start();
                process.BeginOutputReadLine();
                process.OutputDataReceived += new DataReceivedEventHandler(ExeOutputDataReceived);

            }
            catch (Exception ex)
            {
            }
        }


the attachment file is my c# project and text python.