批处理脚本文件编号存在性判断逻辑异常求助

Let's start by unpacking why your current script is acting up:

• Your IF EXIST "%FileNumber%" checks are looking for a file named exactly like the number you input (e.g., if you type 123, it searches for a file literally called 123), not for XML files that contain that number in their filename. That's why even after successfully copying the correct file, it still claims the file doesn't exist.

Here's the corrected script with clear explanations of the changes:

@echo off
setlocal

:FileNum
cls
:: Reset the "file found" flag at the start of each input attempt
set "FileFound=0"
set /P "FileNumber=Please enter File Number: "

:: Handle empty input case first
if not defined FileNumber (
    echo Please enter a valid file number!
    pause
    goto :FileNum
)

:: Search target directory for XML files matching the input number, copy them, and mark as found
for /R "\bpclient\A001\M0093" %%I in ("*%FileNumber%*.xml") do (
    copy /Y "%%I" "\IlnevalExtractionTool\Data\"
    set "FileFound=1"
)

:: Use the flag to decide next steps
if %FileFound% equ 0 (
    echo File Number %FileNumber% Does Not Exist
    echo Try again
    pause
    goto :FileNum
) else (
    goto :result
)

:result
cls
:: Combine copied XML files into Results.txt
copy Data\*.xml Results.txt
endlocal

Key Fixes & Improvements: #

• Added a FileFound flag variable to track whether any matching XML files were located during the search. This replaces your incorrect EXIST checks, which were targeting the wrong thing entirely.
• Added a safeguard for empty input, so the script doesn't act weird if the user just presses Enter.
• Used setlocal to contain all script variables to this session—this prevents leftover values from messing with future runs of the script.
• The for /R loop now sets FileFound=1 whenever it finds and copies a matching file, so we can reliably use that flag to determine if the input was valid.

Now, when you enter a number that matches an XML file, the script will copy it and jump straight to the result section. If no matches are found, it'll prompt you to try again.

内容的提问来源于stack exchange，提问作者Ilneval