@echo off&setlocal enabledelayedexpansion
set/p num=Input a numeric: 
:loop
set/a mod=num%%2,x+=1
if %mod% equ 1 (
    set "var=!num! * 3 + 1"
    set/a num=num*3+1
    set "var=!var! = !num!"
    ) else (
    set "var=!num! / 2"
    set/a num/=2
    set "var=!var! = !num!"
)
echo    %x%:   !var!
if %num% neq 1 goto loop
pause
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@echo off
:eo
cls
set/p n=输入大于1的数字：
echo %n%
:xs
if %n%==1 pause&goto :eo
set/a m=%n%%%2
if %m%==1 (call :xx n %n% "*3+1") else (call :xx n %n% "/2")
goto xs
:xx
set/a %1=%2%~3
echo %2%~3=%n%
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@echo off

setlocal enabledelayedexpansion
:1
set  num=%random%%random%%random%
:a
set num1=%num%
if %num% equ 1 (echo OK!&pause&goto :1)
set /a v=%num%%%2
if %v% equ 0 (set /a num=%num%/2&echo %num1%/2=!num!) else (set /a num=%num%*3+1&echo %

num1%*3+1=!num!)
pause>nul&goto :a
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