Data update

Task/Reverse-a-string/Batch-File/reverse-a-string-1.bat

@@ -0,0 +1,17 @@
+@echo off
+setlocal enabledelayedexpansion
+call :reverse %1 res
+echo %res%
+goto :eof
+
+:reverse
+set str=%~1
+set cnt=0
+:loop
+if "%str%" equ "" (
+	goto :eof
+	)
+set chr=!str:~0,1!
+set str=%str:~1%
+set %2=%chr%!%2!
+goto loop

Task/Reverse-a-string/Batch-File/reverse-a-string-2.bat

@@ -0,0 +1,11 @@
+@echo off
+setlocal enableextensions enabledelayedexpansion
+set str=%1
+::strlen4 from https://ss64.com/forum/strlen.html
+set "tempFile=%temp%\strlen-reverse.tmp"
+echo(%str%>"%tempFile%"
+for %%F in ("%tempFile%") do set /a len=%%~zF-3
+del "%tempFile%"
+<nul (
+for /l %%i in (%len%,-1,0) do set/p=!str:~%%i,1!
+)