一下是一段脚本用于检查某个进程是否存在

@echo off 
:star
ping 127.1 -n 5 >nul 2>nul
tasklist|findstr /i "a.exe" > nul
if errorlevel 1 ( echo "[%date% %time%] a.exe **没有找到**"
) else ( echo "[%date% %time%] a.exe ==正在运行==" )
tasklist|findstr /i "b.exe" > nul
if errorlevel 1 ( echo "[%date% %time%] b.exe **没有找到**"
) else ( echo "[%date% %time%] b.exe ==正在运行==")
echo -------------------------------------
goto star