@echo off
setlocal enabledelayedexpansion
set /p port=please input port number:
for /f "tokens=1-5" %%a in ('netstat -ano ^| find ":%port%"') do (
if "%%e%" == "" (
set pid=%%d
) else (
set pid=%%e
)
echo !pid!
taskkill /f /pid !pid!
)
pause