@echo off
setlocal enabledelayedexpansion
set numMin=0
set numMax=0
for /f "tokens=4 delims=Z." %%a in (a.txt) do (
  if %%a gtr !numMax! (
    set numMax=%%a
  ) else if %%a lss !numMin! (
    set numMin=%%a
  )
)
echo 最小值：%numMin%
echo 最大值：%numMax%
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@Echo Off & Setlocal EnableDelayedExpansion
set /a Max=0
For /f "usebackq tokens=5 Delims=Z. " %%a In ("a.txt") Do (
       If %%a Gtr !Max! (
           set "Max=%%a"
           ) Else (
           If %%a lss !Num! set "Min=%%a"
           set "Num=%%a"
       )
)
Echo Max : %Max%
Echo Min : %Min%
Pause
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@echo off
setlocal enableDelayedExpansion
for /f "usebackq delims=" %%i in ("bj.ini") do (
　set line=%%i
　set line=!line:*Z=Z!
　for /f "tokens=1* delims=Z." %%a in ("!line!") do (
　　if "%%a" lss "a" (
　　　set num=%%a
　　　if not defined Max set/a Max=num
　　　if not defined Min set/a Min=num
　　)
　　if !Max! lss !num! (
　　　set/a Max=num
　　)else if !Min! gtr !num! set/a Min=num
　)
)
echo Max:!Max!　Min:!Min!
pause
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@echo off&setlocal enabledelayedexpansion
set /a min=0,max=0
for /f "tokens=1,2 delims=Z" %%a in ('findstr "Z" a.txt') do (
    if "%%b" equ "" (
       set "str=%%a"
       ) else (
       set "str=%%b"
     )
     for /f "delims=." %%i in ("!str!") do (
          if %%i leq !min! set "min=%%i"
          if %%i geq !max! set "max=%%i"
    )
)
echo 最小值为%min%，最大值为%max%。
pause>nul
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@Echo Off & Setlocal EnableDelayedExpansion
For /F "delims=" %%a In ('Findstr /i "z" "a.txt"') do (
       set "var=%%a" & set "var=!var:*z=!"
       For /F "delims=." %%d In ("!var!") do (
             set "var=......................................%%d"
             set "#!var:~-20!=%%d"
))
For /F "tokens=2 delims==" %%a in ('set #') do (
      If Not Defined Flag Set "Flag=1" & Echo 最小值%%a
      set "max=%%a"
)
Echo 最大值%max%
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//&cls&dir /a-d /b *.txt|cscript -nologo -e:jscript "%~f0"&pause&exit

var fso = new ActiveXObject('Scripting.FileSystemObject');
while(!WSH.StdIn.AtEndOfStream){
    var line  = WSH.StdIn.ReadLine();
    try{
        var m = fso.OpenTextFile(line, 1).ReadAll().match(/\bZ-?\d+/g).sort(function(a,b){return a.substr(1)-b.substr(1)});
        if(m)WSH.Echo(fso.GetFileName(line)+':'+m+' min:'+m[0].substr(1)+' max:'+m[m.length-1].substr(1));
    }catch(e){} 
}
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