文本文件行列互置的批处理
【问题】将文档内容横列变为纵列a.txt内容如下：
a b c d e f
h i j k l m n
1 2 3 4 5
6 7 8 9 10 11 12 13 14 15
a s d
11 12 13 14 15
要求输出结果如下：
a h 1 6 a 11
b i 2 7 s 12
c j 3 8 d 13
d k 4 9 14
e l 5 10 15
f m 11
n 12
13
14
15
【方法1】效率是比较低的了[code]@echo off
for /f "delims=" %%i in (test.txt) do (
set /a n+=1
call set "str%%n%%=%%i "
)
for /l %%i in (1 1 10) do call :join
pause>nul
:split obj
call set "var=%%%1%%"
if "%var%"=="" set "str=" &goto :eof
for %%i in (%var%) do (
set "str=%%i"
call set "%1=%%var:* =%%"
goto :eof
)
:join
set "tmp="
for /l %%i in (1 1 %n%) do (
call :split str%%i
call set tmp=%%tmp%% %%str%%
)
echo.%tmp%[/code]【方法2】来段效率高点的代码，通过构造数组来实现，没有考虑特殊情况：[code]@echo off
:: 注意： set /p= 语句<nul前的空格是跳格键，在论坛中会被转换为空格
:: 复制下来之后，请重新手工设置跳格，否则，将不能起到对齐的效果。
set /a num=0,_num=0,max=0
setlocal enabledelayedexpansion
for /f "delims=" %%i in (test.txt) do (
set /a num+=1,_num=0
for %%j in (%%i) do (
set /a _num+=1
set str!num!_!_num!=%%j
if !_num! geq !max! set max=!_num!
)
)
for /l %%i in (1,1,%max%) do (
for /l %%j in (1,1,%num%) do (
set /p=!str%%j_%%i! <nul
)
echo.
)
pause[/code]【方法3】借用namejm的代码解决对齐的问题：[code]@echo off
set /a num=0,_num=0,max=0
setlocal enabledelayedexpansion
for /f "delims=" %%i in (test.txt) do (
set /a num+=1,_num=0
for %%j in (%%i) do (
set /a _num+=1
set str!num!_!_num!=%%j
if !_num! geq !max! set max=!_num!
)
)
for /l %%i in (1,1,%max%) do (
set "res="
for /l %%j in (1,1,%num%) do (
set "var=!str%%j_%%i! "
set "res=!res!!var:~0,5!"
)
echo !res!
)
pause[/code]【方法4】没想到批处理代码也不是很复杂，我把VBS的也贴上吧：[code]Const ForReading = 1
Const ForWriting = 2
Set objFSO = CreateObject("Scripting.FileSystemObject")
Set objFile = objFSO.OpenTextFile("In.txt",ForReading)
Dim InputStr,lineIndex,TempArr,OutArr(100,100)
Do Until objFile.AtEndOfStream
InputStr = objFile.ReadLine
TempArr = Split(InputStr," ")
If UBound(TempArr) > MaxY Then MaxY = UBound(TempArr)
For i = 0 To UBound(TempArr)
OutArr(lineIndex,i) = TempArr(i)
Next
lineIndex = lineIndex + 1
Loop
objFile.Close
Set objFile = objFSO.OpenTextFile("Out.txt",ForWriting,True)
For i = 0 To MaxY
For j = 0 To lineIndex - 1
If OutArr(j,i) = "" Then OutArr(j,i) = " "
OutStr = OutStr & OutArr(j,i) & " "
Next
objFile.WriteLine OutStr
OutStr = ""
Next
objFile.Close
Set objFile = Nothing
Set objFSO = Nothing[/code]原文地址：[url]http://www.cn-dos.net/forum/viewthread.php?tid=32931[/url] 感谢batcher，总能给我们带回经典的批处理。
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