kill op_function_generator.exe (#27005)

paddle/scripts/paddle_build.bat

@@ -20,12 +20,12 @@ rem       Paddle CI Task On Windows Platform
 rem =================================================
 
 rem -------clean up environment-----------
+wmic process where name="op_function_generator.exe" call terminate  2>NUL
 set work_dir=%cd%
 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
@@ -401,7 +401,7 @@ taskkill /f /im git-remote-https.exe 2>NUL
 taskkill /f /im vctip.exe 2>NUL
 taskkill /f /im cvtres.exe 2>NUL
 taskkill /f /im rc.exe 2>NUL
-taskkill /f /im op_function_generator.exe  2>NUL
+wmic process where name="op_function_generator.exe" call terminate 2>NUL
 taskkill /f /im python.exe  2>NUL
 call paddle_winci\Scripts\deactivate.bat 2>NUL
 taskkill /f /im python.exe  2>NUL