@echo off :: 目的: :: SearchNet.TXT中每行只有一個(gè)數(shù),統(tǒng)計(jì)每個(gè)數(shù)的重復(fù)次數(shù),并按照重復(fù)次數(shù)由高到低排序 :: 思路: :: 先用sort把所有的數(shù)排序,然后統(tǒng)計(jì)重復(fù)次數(shù),以 數(shù)+重復(fù)次數(shù) 的格式寫入臨時(shí)文件tmp2.txt; :: 提取重復(fù)次數(shù)的數(shù)字,以該數(shù)字為長(zhǎng)度建立以該數(shù)字命名的文件,用dir來(lái)把文件名(即重復(fù)次數(shù))排序,寫入tmp3.txt; :: 按行提取tmp3.txt中的內(nèi)容,然后在tmp2.txt中查找與tmp3.txt中匹配的記錄,寫入結(jié)果; :: 此方案會(huì)產(chǎn)生大量的臨時(shí)文件,但是效率比較高 :: :: set num=-1 sort<SearchNet.TXT>tmp1.txt cd.>tmp2.txt cd.>tmp3.txt cd.>result.txt :: 統(tǒng)計(jì)重復(fù)次數(shù) setlocal enabledelayedexpansion for /f %%i in (tmp1.txt) do ( set /a num+=1 set second=!first! set first=%%i if not "!second!"=="" if !second! neq !first! (>>tmp2.txt echo !second! !num!&set num=0) ) >>tmp2.txt echo %first% %num% :: 對(duì)重復(fù)次數(shù)排序 md tmp && pushd tmp for /f "tokens=2" %%i in (../tmp2.txt) do ( cd.>%%i for /l %%j in (1,1,%%i) do echo.>>%%i ) >../tmp3.txt dir /o-s /b :: 按重復(fù)次數(shù)提取記錄 for /f %%i in (../tmp3.txt) do ( >>../result.txt findstr " %%i$" ../tmp2.txt ) popd && rd /q /s tmp del tmp1.txt tmp2.txt tmp3.txt start result.txt goto :eof 關(guān)于統(tǒng)計(jì)字符出現(xiàn)個(gè)數(shù)的其他方案(都不生成臨時(shí)文件) @echo off :: 統(tǒng)計(jì)每個(gè)字符出現(xiàn)的次數(shù),并求出出現(xiàn)次數(shù)最多的字符 :: 思路: :: 通過(guò)提取每個(gè)位上的字符,賦予統(tǒng)一以 字符: 開頭的某些動(dòng)態(tài)變量, :: 如果變量名相同,則自加一次,然后,通過(guò) set 字符:命令一次性提取 :: 所有以 字符: 開頭的動(dòng)態(tài)變量,交給 for 語(yǔ)句來(lái)處理。set 用得很巧妙 :: 無(wú)須生成臨時(shí)文件,并按照字母升序排列 :: :: :: setlocal ENABLEDELAYEDEXPANSION set str=adadfdfseffserfefsefseetsdmg set /a m=0,n=0,l=0 call :loop :: 以下是求出現(xiàn)次數(shù)最多的字符 for /f "tokens=1,2 delims==" %%i in ('set 字符:') do ( echo %%i=%%j if %%j GTR !l! set l=%%j& set m=%%i ) echo.出現(xiàn)次數(shù)最多的%m%=%l% pause goto :EOF :loop call set m=%%str:~%n%,1%% if not defined m goto :EOF set /a "字符:%m%+=1" set /a n+=1 goto loop @echo off :: 統(tǒng)計(jì)字符出現(xiàn)次數(shù) :: 思路: :: 先把字符串拆解為以空格分隔的單字符組成的字符串, :: 然后用for語(yǔ)句來(lái)探測(cè)每個(gè)字符在串中出現(xiàn)的次數(shù) :: 此方法無(wú)須生成臨時(shí)文件,并按照在字符串中出現(xiàn)的 :: 先后順序顯示 :: :: :: setlocal EnableDelayedExpansion set str=adadfdfseffserfefsefseetsdg rem 拆解字符串 :analyze set str_tmp=%str_tmp% %str:~0,1% set str=%str:~1% if not "%str%" == "" goto analyze rem for %%i in (%str_tmp%) do call :exclude %%i pause exit :exclude for %%i in (%counted%) do if "%1"=="%%i" goto :eof set counted=%counted% %1 call :count %1 goto :eof :count for %%i in (%str_tmp%) do if "%1"=="%%i" set /a %1+=1 echo %1 !%1! goto :eof @echo off :: 統(tǒng)計(jì)字符出現(xiàn)的次數(shù) :: 思路: :: 拆解字符串,以空格分隔組成新字符串 :: 通過(guò) shift 來(lái)call 不同的參數(shù),并用 :: set 來(lái)命名變量,變量名具有統(tǒng)一的開頭 :: 最后通過(guò) set 來(lái)顯示這些變量 :: :: :: setlocal EnableDelayedExpansion set str=adadfdfseffserfefsefseetsdg :loop set str_tmp=%str_tmp% %str:~0,1% && set str=%str:~1% if not "%str%" == "" goto loop call :start %str_tmp% set . echo 出現(xiàn)次數(shù)最多的:%max%=%maxN% pause exit :start if [%1]==[] ( goto :eof ) else ( set /a .%1+=1 ) if !.%1! GTR !maxN! set maxN=!.%1!&& set max=.%1 shift goto :start @echo off :: 綜合以上方案,最簡(jiǎn)潔的代碼如下 :: :: setlocal EnableDelayedExpansion set str=adadfdfseffserfefsefseetsdgadadfdfseffserfefsefseetsdga :loop set str$=%str$% %str:~0,1%&set str=%str:~1% if not "%str%" == "" goto loop for %%n in (%str$%) do ( set /a .%%n+=1 if !.%%n! GTR !maxN! set maxN=!.%%n!&&set max=%%n) set . echo 出現(xiàn)次數(shù)最多的:%max%=%maxN% pause exit @echo off&setlocal :: sort之后,通過(guò)比較這一次取到的內(nèi)容和上一次的內(nèi)容是否相等來(lái)統(tǒng)計(jì)重復(fù)次數(shù) :: 如何同時(shí)保存本次和上次的內(nèi)容需要很大的技巧 :: 注意要把次數(shù)的初值設(shè)置為1,for語(yǔ)句的后括號(hào)之后不能緊跟跳出語(yǔ)句 :: :: set /a n=1 for /f %%a in ('type 1.txt^|sort') do ( call :pp %%a ) :pp if not defined bb goto b if "%bb%"=="%1" (set /a n+=1) else (>>ko.txt echo %bb% %n%次&set /a n=1) :b set bb=%1 goto :eof @echo off&setlocal enabledelayedexpansion :: 帶排序功能的代碼 :: 用 for /l 來(lái)控制每次 findstr 的字符長(zhǎng)度, :: 然后把同一長(zhǎng)度的用 sort 來(lái)排序,從而突破了 :: sort 只能按字符位大小來(lái)排序這一限制 :: :: set a=[0-9] for /l %%a in (1,1,3) do ( call :pp !a! set a=!a![0-9] ) goto c :pp for /f %%x in ('findstr "^%1$" aa.txt^|sort') do @echo %%x >>dd.txt goto :eof :c set /a n=1 for /f %%a in ('type dd.txt') do ( call :pp %%a ) :pp if not defined bb goto b if "%bb%"=="%1" (set /a n+=1) else (>>ko.txt echo %bb% %n%次&set /a n=1) :b set bb=%1 goto :eof