判断输入ip是否正确

 

@echo off
:begin
cls
set input=
set /p input=请输入IP：
echo %input%|findstr "^[1-9]*\.[1-9]*\.[0-9]*\.[0-9]*$">nul||goto fail
set _input=%input:.= %
call :check %_input%

:check
if "%4"=="" goto fail
for %%i in (%1 %2 %3 %4) do (
    if %%i gtr 255 goto fail
)
cls
echo %input% 是正确的IP
echo.
pause
goto begin

:fail
cls
echo %input% 是错误的IP
echo.
pause
goto begin

2009-03-26

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chenxu