【练习-043】批处理找出文本中的重复数值并计算出现次数

@echo off&setlocal enabledelayedexpansion
for /f  "delims=" %%i in (a.txt) do (
    for %%j in (%%i) do set /a n+=1&set a!n!=%%j
)
set max=0
:lp
set /a m+=1
if %m%==%n% goto end
if !a%m%! geq %max% (set max=!a%m%!&goto lp) else (set max=%max%&goto lp)
:end
echo 最大的数是%max%
pause
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@echo off
setlocal enabledelayedexpansion
set max=0
for /f "delims=" %%a in (a.txt) do (
        for %%b in (%%a) do (
                if %%b gtr !max! set max=%%b
                set/a_%%b+=1
        )
)
echo Max: %max%

set max=0
for /f "tokens=1,2 delims=_=" %%a in ('set _') do (                
        if %%b gtr !max! set max=%%b
)
for /f "tokens=1,2 delims=_=" %%a in ('set _') do (
        if %%b equ %max% echo Number: %%a, Count: %%b
)
pause
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@echo off&setlocal enabledelayedexpansion
for /f "delims=" %%a in (a.txt) do (
     for %%b in (%%a) do (
           if not defined max set /a max=%%b
           if !max! lss %%b set /a max=%%b
　)
)
echo 最大数为：%max%&pause>nul
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@echo off&setlocal enabledelayedexpansion
echo !max!
if 1 gtr !max! set max=1
echo %max%
pause
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@echo off
Setlocal Enabledelayedexpansion
set /a most=1,max=1
for /f "delims=" %%a in (a.txt) do (
  for %%i in (%%a) do (
    set /a _%%i+=1
    if !_%%i! gtr !most! (set most=!_%%i!&set num=%%i)
    if %%i gtr !max! set max=%%i
  )
)
echo.出现最多的是:!num!   出现次数为:!most!   最大数是:!max!&pause
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@echo off
Setlocal Enabledelayedexpansion
set /a most=0,max=0
for /f "delims=" %%a in (a.txt) do (
  for %%i in (%%a) do (
    set /a _%%i+=1
    if !_%%i! gtr !most! set most=!_%%i!&set num=%%i
    if !_%%i! gtr !most! set num=!num! %%i
    if %%i gtr !max! set max=%%i
  )
)
echo.出现最多的是:!num!   出现次数为:!most!   最大数是:!max!&pause>nul
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