中国DOS联盟

The principle of this VBS I wrote is like this.
Read the tmp.txt file. If it doesn't exist, it means it's the first run, then create the tmp.txt file and input "1" in it.
If it exists, read the "1" inside, then add 1, rewrite this file. And display the number of times it runs. (Display according to the number in tmp.txt)

BAT is something I'm completely incompetent with. :(
Write my thoughts here for reference only.

@echo off

if not defined a (set a=1) else (set/a a=%a%+1)

echo P处理运行了%a%次

Actually, this method is not good. If exiting the current CMD SHELL is invalid and the defined variable A is invalid, it is still seeking the best solution

@echo off

if not defined a (set a=1) else (set/a a=%a%+1)

echo P has run %a% times

Last edited by 9527 on 2007-1-7 at 05:54 AM ]

To calculate the number of runs without using the registry or temporary files, not only batch processing can't do it, but also other languages can't. Because the number of uses always needs to be stored in a place that is not easy to lose data, so that it can be read out next time. -- BTW, putting this number of uses in the batch file itself can also be regarded as using a temporary file, but it's just a disguised use.

Originally posted by namejm at 2007-1-7 06:24:
　　If you calculate the number of runs without using the registry or temporary files, not only batch processing can't do it, but also other languages are impossible to do, because you always have to put the number of uses in a place that is not easy to lose...

Agreed

Since everyone says so, then it will end temporarily. Hehe

@echo off

for /f "tokens=1,2* delims=:" %%i in ('findstr /nv "`" "%~nx0"') do set /a N=%%i-1

for /f "skip=%N% delims=" %%i in ('type "%~nx0"') do (

    for %%n in (%%i) do set /a %%n+=1)

set /a :+=1

echo.&echo. 第 %:% 运行。&echo.

set/p=: <nul>>"%~nx0"

pause

exit

There is a shortcoming in the code on my 6th floor: the batch file name cannot contain spaces.

Improvement to allow spaces:

@echo off

for /f "tokens=1,2* delims=:" %%i in ('findstr /nv "`" "%~nx0"') do set /a N=%%i-1

for /f "skip=%N% delims=" %%i in ('type "%~nx0"') do (

    for %%n in (%%i) do set /a %%n+=1)

set /a :+=1

echo.&echo. The %:% run. &echo.

set/p=: <nul>>"%~nx0"

pause

exit

The file name cannot contain special symbols!
The compiled batch file must have an empty line at the last line for a newline
Test passed on XP SP2

Last edited by zh159 on 2007-1-7 at 12:15 AM ]

Didn't pay attention and there's already a good method, heh heh

Last edited by 26933062 on 2007-1-7 at 12:48 AM ]

Okay, very good

Is it possible to handle file names with spaces by adding 'type "%~nx0"'?