中国DOS联盟

@echo off
SETLOCAL ENABLEDELAYEDEXPANSION
title IP分段工具，开始时间是 %time%
del /f /q 分段结果.txt 2>nul

set start1=
set n=0
for /f "tokens=1-8 delims=.	" %%a in (IPDATA.txt) do (
        set /a n=!n!+1
        if #!start1!#==## (
                set start1=%%a&set start2=%%b&set start3=%%c&set start4=%%d
                SET /A oldnum2=%%a*256*256+%%b*256+%%c
                )
        SET /A nownum1=%%a*256*256+%%b*256+%%c
        if /i !nownum1! GTR !oldnum2! (
                echo !start1!.!start2!.!start3!.!start4! !end1!.!end2!.!end3!.!end4! >>分段结果.txt
rem		echo 输出IP段  !start1!.!start2!.!start3!.!start4! --- !end1!.!end2!.!end3!.!end4!
                set start1=%%a&set start2=%%b&set start3=%%c&set start4=%%d
                )
        SET /A oldnum2=%%e*256*256+%%f*256+%%g+1
        set end1=%%e&set end2=%%f&set end3=%%g&set end4=%%h
        if /i !n! gtr 9999 (
                echo 每处理10000行刷新一次，现在正在处理 %%a.%%b.%%c.%%d  %%e.%%f.%%g.%%h
                set n=0
                )
)

echo !start1!.!start2!.!start3!.!start4! !end1!.!end2!.!end3!.!end4! >>分段结果.txt
echo ********************
rem type 分段结果.txt
pause