anchor.diff:  pip install -r %work_dir%\python\unittest_py\requirements.txt --user
   if %ERRORLEVEL% NEQ 0 (
       echo pip install unittest requirements.txt failed!
  -    exit /b 7
  +    exit /b 5
   )
   
   for /F %%# in ('wmic os get localdatetime^|findstr 20') do set start=%%#
  
positive.code:     pip install -r %work_dir%\python\requirements.txt --user
      if !ERRORLEVEL! NEQ 0 (
          echo pip install requirements.txt failed!
          exit /b 7
      )
  )
  
  
negative.code:     pip install ninja
      if %errorlevel% NEQ 0 (
          echo pip install ninja failed!
          exit /b 5
      )
  )
  
  