传统的批处理变量加密的解密算法

@echo off
color 0A
title 批处理变量加密解密工具

if "%1" EQU "" (
    set /p file=目标文件路径: 
) else (
    set file=%1
)

(for /f "delims=" %%a in (%file%) do (
    set tv=%%a
    setlocal enabledelayedexpansion
        set tv=!tv:^&=#_1_#!
        set tv=!tv:^|=#_2_#!
        set tv=!tv:^<=#_3_#!
        set tv=!tv:^>=#_4_#!
        set tv=!tv:^^=^^^^!
        for /f "delims=" %%b in ("!tv!") do (
    endlocal
            echo; | ^> tmp.txt echo %%b
        )
 
    for /f "delims=" %%b in (tmp.txt) do (
        set tv2=%%b
        setlocal enabledelayedexpansion
        set tv2=!tv2:#_1_#=^&!
        set tv2=!tv2:#_2_#=^|!
        set tv2=!tv2:#_3_#=^<!
        set tv2=!tv2:#_4_#=^>!
        echo !tv2!
        if "!tv2:set =!" neq "!tv2!" (endlocal&call %%a) else (endlocal)
    )
))>out.txt 2>nul

del tmp.txt

cls & echo 尝试解密完成: & echo ===============================================================================
type out.txt
echo ===============================================================================& pause > nul