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For example, to generate sequences like 1, 2, 3... 999, how to do it?

Requirements: Do not use commands under XP.

"Requirement: cannot use commands under XP. " How to understand this? That is, only use DOS's COMMAND?

If that's the case, using WAIT and COUNTER should be possible. Idea: Refer to PLC programming to use "timer and counter relay" to achieve long delay mode, timing drive, counting step activation.

But BATCH FILE may have a simpler way. Please discuss everyone:>

It can be done with the third - party tool Strings.com.

Re bush:

Recently, there seem to be many problems that need to be solved under MSDOS/Win9x_COMMAND, which is very similar to my situation three years ago, and I feel like meeting an old acquaintance from afar.

Regarding generating sequence numbers, I remember mentioning it in a past reply, but it's hard to find now; if I have time, I will organize it into my " An Unusual Batch Programming" topic, please wait.

Now provide a relatively similar code , which uses double loop nesting to generate and process sequence numbers with and without prefix 0 between 0-9 and 10-99.

Change the file name to 001.txt 010.txt...100.txt
http://www.cn-dos.net/forum/viewthread.php?tid=14512

[ Last edited by willsort on 2005-11-25 at 21:54 ]

Thanks willsort, my problem has been solved!

The cause is like this. Got a download package of a website, came back and saw it was incomplete. Had to check to know which files were missing, a thankless task! And these file names are composed of sequence numbers, like this: www.xxx.com/xxx/file1.html、www.xxx.com/xxx/file2.html……www.xxx.com/xxx/file389.html.
Fiddled around for a long time and came up with some batch processing solutions. The idea was to generate sequence numbers first and then use exist to judge.

Before starting, for safety, changed.html to.htm
a.bat

b 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38

;Actually the first batch processing file was also generated with batch processing.
b.bat

@echo off

for %%a in (1,2,3,4,5,6,7,8,9) do call c node%%a.htm

:redo

if "%1" == "" goto end

for %%a in (0,1,2,3,4,5,6,7,8,9) do call c node%1%%a.htm

if errorlevel 2 goto end

shift

goto redo

:end

c.bat

@echo off

if not exist %1 echo %1 >> urls.lst

echo on

The finally obtained urls.lst is the needed file. Hehe, then batch process to download ~

[ Last edited by bush on 2005-11-26 at 00:13 ]

It's simple under CMD, just one statement can do it.

for /l %i in (1,1,389) do @if not exist file%i.html echo.file%i.html>>urls.lst

For downloading things like this, I usually use curl or wget, and then batch organize, which is very convenient.

—————————————— willsort Moderation Record ——————————————
Merge Topic: {17950} Talk about an Example of Solving Problems with Batch Recently (Sequence) — Just Showing Off
Merge Reason: The two topics have direct contextual connections
—————————————— willsort Moderation Record ——————————————

:: Count.bat - Generate a serial of numbers

:: Will Sort - 2005-11-26 - WinXP_CMD/MSDOS7.10/MSDOS6.22

:: Description: An independently runnable example program that outputs a sequence of numbers from 1 to 123 to a file

::              It can be simply modified to generate sequence numbers of any number of digits, any interval, and any format

::              Even decimals are possible to generate.

:: Link: http://www.cn-dos.net/forum/viewthread.php?tid=17883

@echo off

if "%1"==":" goto %2

set _prog=%0

call %_prog% : loop1 0 1 2 3 4 5 6 7 8 9

set _prog=

set _start=

set _break=

goto end



:loop1

if "%3"=="" goto end

if "%3"=="0" call %_prog% : loop2 0 1 2 3 4 5 6 7 8 9

:: If prefix 0 is needed for the generated sequence numbers, omit the above line and also delete the next line's if not "%3"=="0"

if not "%3"=="0" call %_prog% : loop2 %30 %31 %32 %33 %34 %35 %36 %37 %38 %39

if "%_break%"=="true" goto end

shift

goto loop1



:loop2

if "%3"=="" goto end

if "%3"=="0" call %_prog% : loop3 0 1 2 3 4 5 6 7 8 9

:: If prefix 0 is needed for the generated sequence numbers, omit the above line and also delete the next line's if not "%3"=="0"

if not "%3"=="0" call %_prog% : loop3 %30 %31 %32 %33 %34 %35 %36 %37 %38 %39

if "%_break%"=="true" goto end

shift

goto loop2



:loop3

if "%3"=="" goto end

if "%3"=="1" set _start=true

if "%_start%"=="true" echo.%3>>sn.txt

:: The above line is the functional code for counting. The example only outputs numbers to a file

if "%3"=="123" set _break=true

if "%3"=="123" goto end

:: _start is the mark to start counting, 1 is the boundary to start counting

:: _break is the mark to interrupt counting, 123 is the boundary to interrupt counting

shift

goto loop3



:end

[ Last edited by willsort on 2005-11-26 at 18:16 ]