anchor.diff:  cd /d build
   
   rem ------initialize the virtual environment------
  -if not defined PYTHON_ROOT set PYTHON_ROOT=c:\Python37
  +if not defined PYTHON_ROOT set PYTHON_ROOT=C:\Python37
  +set PATH=%PYTHON_ROOT%;%PYTHON_ROOT%\Scripts;%PATH%
  +
   set PYTHON_EXECUTABLE=%PYTHON_ROOT%\python.exe
   %PYTHON_EXECUTABLE% -m pip install virtualenv
  -if not exist paddle_winci (%PYTHON_EXECUTABLE% -m virtualenv paddle_winci)
  +%PYTHON_EXECUTABLE% -m virtualenv paddle_winci
   call paddle_winci\Scripts\activate.bat
  -if %ERRORLEVEL% NEQ 0 exit /b %ERRORLEVEL%
   
   rem ------pre install requirement----------
   where python
  
positive.code: set INFERENCE_DEMO_INSTALL_DIR=%cache_dir:\=/%/inference_demo
  
  if not exist %cache_dir%\tools (
      git clone https://github.com/zhouwei25/tools %cache_dir%\tools
      if %ERRORLEVEL% NEQ 0 exit /b %ERRORLEVEL%
  )
  
  
negative.code: pip install --upgrade pip
  pip install wheel
  pip install gym
  pip install -U -r %work_dir%\python\requirements.txt
  if %ERRORLEVEL% NEQ 0 (
      call paddle_winci\Scripts\deactivate.bat
      exit /b %ERRORLEVEL%
  )
  
  rem ------initialize common variable------
  if not defined CUDA_TOOLKIT_ROOT_DIR set CUDA_TOOLKIT_ROOT_DIR="C:/Program Files/NVIDIA GPU Computing Toolkit/CUDA/v10.0"
  