@echo off&setlocal enabledelayedexpansion
color f0
:loop
set ip=
set /p ip=请输入ip：

if not defined ip echo ip地址不能为空。&goto :loop

for /f "tokens=1-4* delims=." %%a in ("!ip!") do (
set a=%%a
set b=%%b
set c=%%c
set d=%%d
set e=%%e
echo !a! !b! !c! !d!
if not defined a echo 请检查ip地址格式!&goto :loop
if not defined b echo 请检查ip地址格式!&goto :loop
if not defined c echo 请检查ip地址格式!&goto :loop
if not defined d echo 请检查ip地址格式!&goto :loop
if defined e echo 请检查ip地址格式!&goto :loop
echo !a!!b!!c!!d!|findstr /i /v "^[0-9]*$" >nul&&(echo 纯数字!!!&echo.&goto :loop)
if !a! gtr 255 echo 输入不能大于255!!!&goto :loop
if !b! gtr 255 echo 输入不能大于255!!!&goto :loop
if !c! gtr 255 echo 输入不能大于255!!!&goto :loop
if !d! gtr 255 echo 输入不能大于255!!!&goto :loop
)

pause
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@echo off 
set /p ip=请输入IP： 
echo %ip%|findstr "^[0-9]*\.[0-9]*\.[0-9]*\.[0-9]*$">nul||goto end
(for /f "tokens=4 delims=." %%i in ("%ip%") do (
     for %%j in (%ip:.=,%) do if %%j gtr 255 goto end
))||goto end
echo 输入正确
echo. 
pause & exit
:end
echo 输入错误
pause >nul
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# powershell代码例子:(愿意的话,你也可以把这些个ip地址 放到你的脚本中测测)
$ipgroup = "192.168.0.1","1451432309","::1","","fff1::101","123.456.123.123","123.43a.1.17","2001:0000:1F1F:0000:0000:0100:11A0:ADDF","1.2.o.3","123.233.4"
#将返回true 或false, 倒数第一个合法，那是因为会自动扩展成123.233.0.4,倒数第二个不是零，剩下都简单我就不说了。
foreach ($temp in  $ipgroup )
{
		[system.net.ipaddress]::tryparse("$temp",[ref]$null)
}
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