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回复 1# MF9593

@echo off
@setlocal enabledelayedexpansion

rem 目前支持 add , backup , quit
rem 格式:
rem add 域名 [IP地址]
rem backup
rem quit

rem Ps : []中的内容表示非必须
rem 我有空再慢慢打磨 , 添加 del 和 restore

set host="%windir%\system32\drivers\etc\hosts"
set back="%windir%\system32\drivers\etc\hosts_%date:~0,4%_%date:~5,2%_%date:~8,2%_%time:~0,2%_%time:~3,2%.bak"

rem set host="hosts"
rem set back="hosts_%date:~0,4%_%date:~5,2%_%date:~8,2%_%time:~0,2%_%time:~3,2%.bak"

attrib -R %host%

:main
    rem 主循环
    set "command="
    set /P command=
    if "%command%"=="" (
        goto:main
    )
    for /F "tokens=1-26" %%a in ("%command%") do (
        if /I "%%a"=="add" call:add %%b %%c
        if /I "%%a"=="backup" call:backup
        if /I "%%a"=="quit" call:quit
        echo done
    )
goto:main

rem ----------

:add
    rem 添加IP和域名
    rem 若IP缺省则通过ping获取
    set address=%~1
    if "%~2"=="" (
        call:get_IP %address%
    ) else (
        set ip=%~2
    )
    echo %ip%	%address% >>%host%
goto:eof

:get_IP
    for /F "skip=6" %%i in ('ping %~1') do (
        set IP=%%i
        goto:eof
    )
goto:eof

rem ----------

:backup
    copy %host% %back%
goto:eof

rem ----------

:quit
    attrib +R %host%
exit
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