pcl_test

回复 1# diverpan

试试输入1..2 3.4或1.2 3. 4.

pcl_test

@echo off
set /p str=输入ip:
echo;%str%|findstr "^[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*$">nul || (echo;N&pause&exit)
for %%a in (%str:.= %) do (
    echo;%%a|findstr "^[0-9]$ ^[1-9][0-9]$ ^1[0-9][0-9]$ ^2[0-4][0-9]$ ^25[0-5]$">nul && (set /a n+=1)
)
if "%n%" equ "4" (echo;Y) else echo;N
pause
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