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@echo off set "file=a.txt" set "str=*,,3000-0" (for /f "usebackq delims=" %%a in ("%file%") do ( set "line=%%a" setlocal enabledelayedexpansion if "!line!" == "!line:@=!" (echo,!line!) else (echo,!str!) endlocal ))>b.txt pause复制代码
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