Batch file 批脚本键盘记录器

代码底部的问题

我的代码：

@echo off
color 0a
title Keylogger
goto start

:start
cls
choice /c qwertyuiopasdfghjklzxcvbnm1234567890 >nul
if %errorlevel% == 1 goto q
if %errorlevel% == 2 goto w
if %errorlevel% == 3 goto e
if %errorlevel% == 4 goto r
if %errorlevel% == 5 goto t
if %errorlevel% == 6 goto y
if %errorlevel% == 7 goto u
if %errorlevel% == 9 goto i
if %errorlevel% == 10 goto o
if %errorlevel% == 11 goto p
if %errorlevel% == 12 goto a
if %errorlevel% == 13 goto s
if %errorlevel% == 14 goto d
if %errorlevel% == 15 goto f
if %errorlevel% == 16 goto g
if %errorlevel% == 17 goto h
if %errorlevel% == 18 goto j
if %errorlevel% == 19 goto k
if %errorlevel% == 20 goto l
if %errorlevel% == 21 goto z
if %errorlevel% == 22 goto x
if %errorlevel% == 23 goto c
if %errorlevel% == 24 goto v
if %errorlevel% == 25 goto b
if %errorlevel% == 26 goto n
if %errorlevel% == 27 goto m
if %errorlevel% == 28 goto 1
if %errorlevel% == 29 goto 2
if %errorlevel% == 30 goto 3
if %errorlevel% == 31 goto 4
if %errorlevel% == 32 goto 5
if %errorlevel% == 33 goto 6
if %errorlevel% == 34 goto 7
if %errorlevel% == 35 goto 8
if %errorlevel% == 36 goto 9
if %errorlevel% == 37 goto 0

:q
cls
echo q >> %USERPROFILE%\desktop\test.txt
goto start

:w
cls
echo w >> %USERPROFILE%\desktop\test.txt
goto start

:e
cls
echo e >> %USERPROFILE%\desktop\test.txt
goto start

:r
cls
echo r >> %USERPROFILE%\desktop\test.txt
goto start

:t
cls
echo t >> %USERPROFILE%\desktop\test.txt
goto start

:y
cls
echo y >> %USERPROFILE%\desktop\test.txt
goto start

:u
cls
echo u >> %USERPROFILE%\desktop\test.txt
goto start

:i
cls
echo i >> %USERPROFILE%\desktop\test.txt
goto start

:o
cls
echo o >> %USERPROFILE%\desktop\test.txt
goto start

:p
cls
echo p >> %USERPROFILE%\desktop\test.txt
goto start

:a
cls
echo a >> %USERPROFILE%\desktop\test.txt
goto start

:s
cls
echo s >> %USERPROFILE%\desktop\test.txt
goto start

:d
cls
echo d >> %USERPROFILE%\desktop\test.txt
goto start

:f
cls
echo f >> %USERPROFILE%\desktop\test.txt
goto start

:g
cls
echo g >> %USERPROFILE%\desktop\test.txt
goto start

:h
cls
echo h >> %USERPROFILE%\desktop\test.txt
goto start

:j
cls
echo j >> %USERPROFILE%\desktop\test.txt
goto start

:k
cls
echo k >> %USERPROFILE%\desktop\test.txt
goto start

:l
cls
echo l >> %USERPROFILE%\desktop\test.txt
goto start

:z
cls
echo z >> %USERPROFILE%\desktop\test.txt
goto start

:x
cls
echo x >> %USERPROFILE%\desktop\test.txt
goto start

:c
cls
echo c >> %USERPROFILE%\desktop\test.txt
goto start

:v
cls
echo v >> %USERPROFILE%\desktop\test.txt
goto start

:b
cls
echo b >> %USERPROFILE%\desktop\test.txt
goto start

:n
cls
echo n >> %USERPROFILE%\desktop\test.txt
goto start

:m
cls
echo m >> %USERPROFILE%\desktop\test.txt
goto start

:1
cls
echo 1 >> %USERPROFILE%\desktop\test.txt
goto start

:2
cls
echo 2 >> %USERPROFILE%\desktop\test.txt
goto start

:3
cls
echo 3 >> %USERPROFILE%\desktop\test.txt
goto start

:4
cls
echo 4 >> %USERPROFILE%\desktop\test.txt
goto start

:5
cls
echo 5 >> %USERPROFILE%\desktop\test.txt
goto start

:6
cls
echo 6 >> %USERPROFILE%\desktop\test.txt
goto start

:7
cls
echo 7 >> %USERPROFILE%\desktop\test.txt
goto start

:8
cls
echo 8 >> %USERPROFILE%\desktop\test.txt
goto start

:9
cls
echo 9 >> %USERPROFILE%\desktop\test.txt
goto start

:0
cls
echo 0 >> %USERPROFILE%\desktop\test.txt
goto start

我想我的问题是，它怎么了？它会在测试中显示一些不同字符的字母。bat甚至认为代码似乎是正确的。我做错了什么？

如果你问我“这段代码有什么问题”，我的回答是：这是一个经典的例子，说明了为什么对批处理文件了解不够的人认为批处理文件编程是初级和粗糙的，批处理并不是真正的“编程语言”

在任何“真正的编程语言”（如C#、Java、Python等）中都可以使用完全相同的方法。然而，由于我无法理解的原因，发布的此类示例作为批处理文件比任何其他语言都多

这是我完成同样任务的方式：

@echo off
setlocal EnableDelayedExpansion

color 0a
title Keylogger

set "chars= qwertyuiopasdfghjklzxcvbnm1234567890"

:start
cls
choice /c %chars% >nul
>> %USERPROFILE%\desktop\test.txt echo !chars:~%errorlevel%,1!
goto start

---

除此之外，我不明白你到底在问什么，你能改进一下这个问题吗…

你的代码中有一个错误

---

在您的

if

检查中，您不具备if

%errorlevel%

等于8的条件，因此选择列表中u之后的每个键都会被不正确的

if

语句检查。我应该是8，O应该是9，等等。你应该只有36张支票。

检查第15行，你遗漏了一些东西：D

---

如果%errorlevel%==8转到？

不清楚你在问什么。你期望它做什么？它实际上做什么？