如何使用嵌套FOR在批处理文件中循环 [英] How to use nested FOR loops in batch files

问题描述

我有一些code中，我想使用的循环处理一组文件。
作为处理文件的部分有一个 FOR / F 循环读取它，将数据追加到基于文件名的其他文件。

为了能够设置输出文件的名字我已经延迟的变量扩充设置。

这是code应该是什么样子，因为我本来想它是：

SETLOCAL enabledelayedexpansion
在（DataFolder \\ *。EXT）%% f执行（
    设置POI = %%〜F
    设置POI = JbPOI：DataFolder \\ =！
    设置POI = JbPOI：.EXT =！
    FOR / F令牌= 1,2,3 delims =%%一中（%%〜F）做（
        设置CX = %%一
        设置CY = %% b
        设置FN = %%Ç
        回音！FN！，9！CX！，！CY！ ＆GT;＆GT; DataFolder \\！POI！.TMP
    ）
）
ENDLOCAL


这code不起作用，因为变量 %% A ， %% b 和 %%ç永远不会收到一个值， %% A 始终具有相同的值 %%˚F 。

我看了一下这个问题的一些文章，但不能提取他们工作的解决方案。

我已经试过几件事，没有工作至今...

• 添加一个虚拟的外循环创建变量 %% A 到 %%Ĵ明确

采取
• 内的环出，并使它成为子程序

采取
• 内的循环并把它作为单独的批处理文件

谁能告诉我如何能 - 或者必须 - 解决

解决方案

  SETLOCAL enabledelayedexpansion
在（DataFolder \\ *。EXT）%% f执行（
    设置POI = %%〜F
    设置POI = JbPOI：DataFolder \\ =！
    设置POI = JbPOI：.EXT =！
    FOR / Fuseback令牌= 1,2,3 delims =%%一中（%%〜F）做（
        设置CX = %%一
        设置CY = %% b
        设置FN = %%Ç
        回音！FN！，9！CX！，！CY！ ＆GT;＆GT; DataFolder \\！POI！.TMP
    ）
）
ENDLOCAL
 

我不知道，如果你想读取文件%%〜F，但我认为这是你所需要的。

I have some code in which I want to use a FOR loop to handle a set of files. As part of handling a file there's a FOR /F loop that reads it and appends data to an other file based on the file name.

In order to be able to set the output file name I have delayed variable expansion set on.

This is what the code should look like as I originally intended it to be:

setlocal enabledelayedexpansion
for %%f in (DataFolder\*.Ext) do (
    set POI=%%~f
    set POI=!JbPOI:DataFolder\=!
    set POI=!JbPOI:.Ext=!
    for /f  "tokens=1,2,3 delims=," %%a in ("%%~f") do (
        set CX=%%a
        set CY=%%b
        set FN=%%c
        echo !FN!,9,!CX!,!CY! >> "DataFolder\!POI!.tmp"
    )
)
endlocal

This code doesn't work because variable %%a, %%b and %%c never receive a value, %%a always has the same value as %%f.

I have read some articles about this issue but couldn't extract a solution from them that worked.

I have tried several things, none worked so far...

• added a dummy outer loop to create variable %%a through %%j explicitly
• inner FOR loop taken out and made it a subroutine
• inner FOR loop taken out and made it a separate batch file

Can anybody please tell me how this can - or must - be solved?

解决方案

setlocal enabledelayedexpansion
for %%f in (DataFolder\*.Ext) do (
    set POI=%%~f
    set POI=!JbPOI:DataFolder\=!
    set POI=!JbPOI:.Ext=!
    for /f  "useback tokens=1,2,3 delims=," %%a in ("%%~f") do (
        set CX=%%a
        set CY=%%b
        set FN=%%c
        echo !FN!,9,!CX!,!CY! >> "DataFolder\!POI!.tmp"
    )
)
endlocal

I'm not sure if you want to read the file "%%~f" , but I think this is what you need.

这篇关于如何使用嵌套FOR在批处理文件中循环的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！