anchor.diff:  
   set build_times=1
   :build_tp
  -echo Build third_party for %build_times% time:
  +echo Build third_party the %build_times% time:
   msbuild /m /p:Configuration=Release /verbosity:quiet third_party.vcxproj
   if %ERRORLEVEL% NEQ 0 (
       set /a build_times=%build_times%+1  
  
positive.code: echo    ========================================
  echo    Step 3. Test pip install whl package ...
  echo    ========================================
  dir /s /b python\dist\*.whl > whl_file.txt
  set /p PADDLE_WHL_FILE_WIN=< whl_file.txt
  
  
negative.code: rem       Paddle CI Task On Windows Platform
  rem =================================================
  
  rem -------clean up environment-----------
  set work_dir=%cd%
  if exist build rmdir build /s/q
  mkdir build
  cd /d build
  tree .
  dir paddle\fluid\pybind\Release
  taskkill /f /im op_function_generator.exe  2>NUL
  
  rem ------initialize the virtual environment------
  if not defined PYTHON_ROOT set PYTHON_ROOT=C:\Python37
  