[数值计算] 麻烦帮解释下此代码含意

@echo off& mode con cols=80 lines=20& color 0b& setlocal enabledelayedexpansion
del wind.txt 2>nul& set /p cds=test1:& set /p txt=test2:& set /p textx=test3:
if not "%textx%"=="" (for %%1 in (%textx%)do (set /p textxy=<%%1
call set wind01=%%wind01%% %%textxy%%))


for %%1 in (%txt%)do (set /p oo=<%%1
call echo %%oo%% >>wind.txt)

call :smile a.txt wind
call :smile wind.txt windx
del wind.txt
if not "%textx%"=="" (
for %%1 in (%smilex%)do for %%2 in (%wind01%)do if %%1==%%2 call set smile01=%%smile01%% %%1
for %%9 in (!smile01!)do if not defined yy%%9 set xyyy=!xyyy! %%9&& set yy%%9=yy%%9
echo !xyyy!)

pause 1>nul& exit
:smile
for /f "delims=" %%1 in (%1)do for %%2 in (%%1)do for %%3 in (%cds%)do echo %%2| findstr ".%%3">nul&& call set %1=%%%1%% %%2
if not "%textx%"=="" (call set smilex=%%%1%%)else call echo %%%1%% 
复制代码