@echo off & setlocal enabledelayedexpansion
echo 代码开始

echo 65001编码获取： > nul
chcp 65001 >nul

for /f "delims=" %%a in ('netsh interface show interface^|more +3') do (
    set "str=%%a"
    for /f "tokens=*" %%b in ("!str:~46!") do set interfaceName=%%b
)

rem 代码保存为ansi编码的bat文件--显示乱码
rem 代码保存为编码utf-8编码的bat文件--正常
echo,网卡名称: "%interfaceName%"
pause & cls

chcp 936 > nul
echo 936编码输出： > nul

rem 代码保存为ansi编码的bat文件---正常
rem 代码保存为编码utf-8编码的bat文件--显示乱码
echo,网卡名称: "%interfaceName%"
pause & cls

set "macname=%interfaceName%"

netsh int ip set dns "%macname%" dhcp >nul
netsh int ip set address name="%macname%" source=dhcp
netsh interface ip set wins name="%macname%" source=dhcp

ipconfig /renew & cls & ipconfig /flushdns & cls
echo 设置成功。& 1pause & cls & exit /b
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@echo off
title IP设置
mode con lines=7 cols=50
setlocal enabledelayedexpansion
color a


set ip=192.168.8.20
set mask=255.255.255.128
set "gateway=192.168.8.1"

set  "DNS1= "
set  "DNS2= "
set isIP=false

set "online="
set "tips="
set "s="

:input_ip
cls
echo.&echo.

call :check_ip
if "%isIP%" == "false" cls &echo.&echo.&echo.&echo %s%%s%IP地址格式不正确，按任意键返回重新输入！ & pause >nul & goto input_ip

for /f "delims=" %%i in ('ipconfig^|find "以太网"') do (
  set name=%%i
  set name=!name:~7,-1!
  for /f "delims=" %%i in ('netsh interface show interface "!name!" ^| find "已连接"') do set "online=!online! ^"!name!^""
)

for %%i in (!online!) do (
  set /a c+=1
  set "lan!c!=%%i"
)

if !c! == 1 call :set_ip !lan1! & goto :eof

:choose
set /a c+=5
mode con lines=!c! cols=50
cls
echo.&echo %s%已连网的网卡：
for %%i in (!online!) do (set /a n+=1&echo %s%%s%!n!.%%~i)
echo.
set /p choose=%s%请选择给哪个网卡设置IP地址:
if "%choose%" == "" set "n=" & goto :choose
if not defined lan%choose% set "n=" & goto :choose
call :set_ip !lan%choose%!

:check_ip
if "%ip%" == "" set "isIP=false" & exit /b
for /f "tokens=1-5 delims=." %%i in ("%ip%") do (
  if "%ip:~-1%" == "." set "isIP=false" & exit /b
  if "%%m" neq "" set "isIP=false" & exit /b
  if %%i  leq 0 set "isIP=false" & exit /b
  if %%i  gtr 252 set "isIP=false" & exit /b
  if %%j  leq 0 set "isIP=false" & exit /b
  if %%j  gtr 252 set "isIP=false" & exit /b
  if %%k  leq 0 set "isIP=false" & exit /b
  if %%k gtr 252 set "isIP=false" & exit /b
  if %%l  leq 1 set "isIP=false" & exit /b
  if %%l  gtr 252 set "isIP=false" & exit /b
  set "isIP=true" & exit /b
)

:set_ip
netsh interface ipv4 set address "%~1" static %ip% %mask% %gateway% 1 >nul
netsh interface ipv4 add dns "%~1" %DNS1% index=1 >nul
netsh interface ipv4 add dns "%~1" %DNS2% index=2 >nul
cls&echo.&echo.&echo %s%%s%%s%%s%IP设置完成，按任意键退出！ & pause >nul & goto :eof
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