@echo off
for /f %%a in ('echo prompt $H^|cmd') do set "bs=%%a"
title 发送
:1
set "key="
for /f "delims=" %%a in ('xcopy /w . 2^>nul') do if not defined key set "key=%%a"
set key=%key:~-1%
if "%key%" == "" (
    echo=
    set key=enter
) else if "%key%" == "%bs%" (
    <nul set/p=%bs% %bs%
    set key=backspace
) else if "%key%" == " " (
    <nul set/p=_%bs% 
    set key=space
) else <nul set/p=%key%
>nul waitfor /si %key%
goto 1
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@echo off
for /f %%a in ('echo prompt $H^|cmd') do set "bs=%%a"
title 接收
if not "%1" == "" goto a
for %%a in (0 1 2 3 4 5 6 7 8 9 a b c d e f g h i j k l m n o p q r s t u v w x y z enter backspace space) do start /b "" "%~f0" %%a
pause>nul
exit

:a
>nul waitfor %1
if "%1" == "enter" (
    echo=
) else if "%1" == "backspace" (
    <nul set/p=%bs% %bs%
) else if "%1" == "space" (
    <nul set/p=_%bs% 
) else <nul set/p=%1
goto a
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@echo off
title demo
mode 60,40
rem 读的初始位置
set r_h=3
set r_l=15
rem 写的初始位置
set response_w=22;15

for /f %%a in ('echo prompt $H^|cmd') do set "bs=%%a"
for /f %%a in ('echo=prompt $E^|cmd') do set "esc=%%a"


if not "%1" == "" goto a
echo=加载中....
for %%a in (0 1 2 3 4 5 6 7 8 9 a b c d e f g h i j k l m n o p q r s t u v w x y z enter backspace space) do start /b "" "%~f0" %%a&&ping 127.1 /n 1 >nul
cls
ping 127.1 /n 2 >nul
set/pa=%esc%[20;1H<nul
echo=============================================================
set/pa=%esc%[%r_h%;%r_l%H<nul
:1
set "key="
for /f "delims=" %%a in ('xcopy /w . 2^>nul') do if not defined key set "key=%%a"
set key=%key:~-1%
if "%key%" == "" set key=enter
if "%key%" == "%bs%" set key=backspace
if "%key%" == " " set key=space
call :draw %key%
>nul waitfor /si %key% /s 192.168.1.7
goto 1



:a
>nul waitfor %1
if "%1" == "enter" (
    echo=
    <nul set/p=_%bs%              
) else if "%1" == "backspace" (
    <nul set/p=%bs% %bs%
) else if "%1" == "space" (
    <nul set/p=_%bs% 
) else (
    <nul set/p=%1
)
goto a


:draw
if "%1" == "enter" (
    set/pa=%esc%[%response_w%H<nul
    echo=
    <nul set/p=_%bs%              
    call :get_cursor_pos pos response_w
    set/ar_h+=1
    set r_l=15
    set/pa=%esc%[%r_h%;%r_l%H<nul
) else if "%1" == "backspace" (
    set/pa=%esc%[%response_w%H<nul
    <nul set/p=%bs% %bs%
    call :get_cursor_pos pos response_w
    set/ar_l-=1
    set/pa=%esc%[%r_h%;%r_l%H<nul
) else if "%1" == "space" (
    set/pa=%esc%[%response_w%H<nul
    <nul set/p=_%bs% 
    call :get_cursor_pos pos response_w
    set/ar_l+=1
    set/pa=%esc%[%r_h%;%r_l%H<nul
) else (
    set/pa=%esc%[%response_w%H<nul
    <nul set/p=%1
    call :get_cursor_pos pos response_w
    set/ar_l+=1
    set/pa=%esc%[%r_h%;%r_l%H<nul
)
exit /b


:get_cursor_pos
set "response="
set pos=2
:_get_loop
<nul set /p "=%esc%[6n" 
for /l %%# in (1 1 %pos%) do pause<con>nul
set "char=;"
for /f "tokens=1 skip=1 delims=*" %%c in ('"replace /w ? . < con"') do set "char=%%c"
set "response=%response%%char%"
set /a pos+=1
if "%char%" neq "R" goto :_get_loop
set %2=%response:~0,-1%
exit /b
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