
CODE: [Copy to clipboard]源文件为a.txt,输出文件为b.txt@echo off&setlocal enabledelayedexpansion
for /f "tokens=1-3 delims=," %%i in (a.txt) do (set i=%%i
if not "!i:~0,1!"==" " (set "j=!i:~0,1!"&echo %%i,%%j,%%k)else echo !j!!i:~1!,!i:~1!,%%j)>>b.txt
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