
CODE: [Copy to clipboard]1,不能将=定义为变量@echo off
set ""#"=="
set ""?"=="
set ""@"=="
(for /f "delims=" %%a in (1.txt) do (
set a=%%a
setlocal enabledelayedexpansion
if defined "!a:~0,1!" (echo !a:~1!) else echo !a!
Endlocal
))>2.txt
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