关于cmd：Batch编程=“ set / p”将不接受空格作为答案

Batch Programming = “set /p” wont accept spaces as an answer

我知道我要问的确切问题已经有了答案，但是我试图理解该答案，或者与提出答案的人联系，但我没有走得很远。

我在说什么在这里：

没有输入时批处理" set / p"崩溃

但我不明白如何从那里的答案来修复我的代码。

下面的代码的问题是，当我按1时，它进入1answered，当我按2时，它进入2answered，当我按输入时，它进入代码的开头，但是可以，当我按键入一个空格，然后按Enter键，代码崩溃。回答时，请记住，我是个孩子，根本不了解代码，因此我可能不理解复杂的答案。

附言：抱歉，如果我拼错了一些东西，英语不是我的母语。

代码示例：

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@echo off
:start
cls
set input=x

set /p input=Enter input:

if %input%==1 goto 1answered
if %input%==2 goto 2answered

echo A mistake was made
pause >NUL
goto start

:1answered
echo You entered the number 1
pause >NUL
exit

:2answered
echo You entered the number 2
pause >NUL
exit

另外，这是我正在处理的代码。
我知道它不好，但是我不知道更好：/

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@echo off

(
set /p usernameofplayer=
)<usernameofplayer.txt

set input=x

mode 85,30

color 0b

title LiteTec.inc

goto mainpage

::The code on top of mainpage is just for looks, random.

:mainpage
cls
echo.
echo var dog = ( -0.19 ) ^+ Jon / ( 0.15 ) ^* -foo(y,x,rule(destroy() ^* ROWS,920.47))
echo /^* terminals used ^*/
echo var num, id_var, id_func, id_idx, binaryOP, quote, assignOP;
echo this.getRandomRule = function () {
echo if (this.rules.length == 0) {
echo return""
echo WELCOME TO
echo _ ____ ______ ___ ______ ___ __
echo ^| ^| ^| ^|^| ^| / _] ^| / _] / ]
echo ^| ^| ^| ^| ^| ^| / [_^| ^| / [_ / /
echo ^| ^|___ ^| ^| ^|_^| ^|_^|^| _]_^| ^|_^|^| _]/ /
echo ^| ^| ^| ^| ^| ^| ^| [_ ^| ^| ^| [_/ \\_
echo ^| ^| ^| ^| ^| ^| ^| ^| ^| ^| ^| ^\\ ^|
echo ^|_____^|^|____^| ^|__^| ^|_____^| ^|__^| ^|_____^|^\\____^|
echo.
echo For help type"help" and click enter
echo.
goto command

:command
set /p input=#%usernameofplayer%^>

if %input%==reset goto mainpage
if %input%==help goto help
if %input%==chat goto chat
if %input%==access goto accessnotspecified
if %input%==x goto command
if %input%==ELSE goto command

:help
echo.
echo ================================================================
echo To use a command, type in its name and click enter
echo To learn sub commands of a command, type the command
echo with [] at the end
echo example: command[]
echo To use a sub command of a command, type the sub command
echo in the [] of the command
echo List of commands available:
echo =reset
echo =chat
echo =access
echo =
echo ================================================================
goto command

:accessnotspecified
echo.
echo What to access is not specified
echo.
goto command