@echo off
setlocal enabledelayedexpansion&cls
for /f "tokens=* usebackq delims=" %%i in ("a.txt") do (
set "_ms="
for /f "tokens=6 delims== " %%a in ('ping/n 2 /w 1000 %%i^|findstr "Average"') do set "_ms=%%a"
if "!_ms!"=="" (echo %%i 不能打开) else (echo %%i 可以打开 !_ms!)
)>>b.txt
复制代码

@echo off
setlocal enabledelayedexpansion&cls
path=%path%;%~d0\DOS\网络;%~d0\DOS\command\第三方命令行程序;%~d0\DOS\command;%~d0\DOS\源码;%~d0\DOS\系统备份
::==============================================================
:start
for /f "tokens=* usebackq delims=" %%a in ("url.txt") do (
set/a count+=1&set/p =计数: !count!<nul
start/b curl %%a>nul
)
echo.
复制代码

@echo off

for /f %%i in (1.txt) do (
ping %%i -n 3 >a.txt
find "时间=" a.txt >nul && echo %%i 通的 || echo %%i 不通)
pause
复制代码