@echo off
setlocal enabledelayedexpansion
set command=" ipconfig /all | findstr /c:"DNS Servers" /rc:"[ ][ ][ ]*[0-9]" "
for /f "tokens=1,2,*" %%a in (' %command% ') do (
if "%%b"=="" (
set DNS_Servers2=%%a
) else (
set value=%%c
set value=!value:*:=!
set %%a_%%~nb=!value:* =!
)
)
echo 首选 DNS：%DNS_Servers%
echo 备用 DNS：%DNS_Servers2%
pause
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@echo off
set commamd="netsh interface ip show dnsservers|findstr "[0-9]*\.[0-9]*\.""
for /f "delims=" %%a in ('%commamd%') do (
	if not defined DNS1 ( SET "DNS1=%%a" ) else ( set "DNS2=%%a" )
)
SET "DNS1=%DNS1: =%"&SET "DNS2=%DNS2: =%"
echo;首选DNS：%DNS1:*:=%
echo;备用DNS：%DNS2:*:=%
pause
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@echo off
ipconfig /all|findstr "[0-9]*\.[0-9]*\."
pause
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set command=" ipconfig /all | findstr /i /b /r /c:" *DNS Servers" /c:" *DNS 服务器" /c:" *[0-9]" "
for /f "tokens=1* delims=:" %%a in ('%command%') do (
    if "%%b" == "" (set 备用=%%a) else (set 首选=%%b)
)
echo;%首选: =%
echo;%备用: =%
pause
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@echo off
PowerShell "[string](ipconfig /all) -match '(?<=DNS 服务器)(?!DNS 服务器).*?((?:\d+\.){3}\d+) *((?:\d+\.){3}\d+)'|%%{$matches[1],$matches[2]}"
pause
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@echo off
for /f "delims=" %%i in ('netsh interface ip show dnsservers ^| findstr "[0-9]*\.[0-9]*\.[0-9]*\.[0-9]*"') do (
	if not defined DNS1 (
        set "DNS1=%%i"
    ) else (
        set "DNS2=%%i"
        goto :OutPut
    )
)
:OutPut
set "DNS1=%DNS1: =%"
set "DNS2=%DNS2: =%"
echo %DNS1:*:=%
echo %DNS2:*:=%
pause
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