Question

我无法在第一个for循环中使用第二个参数（%%b）在for第二个循环中进行比较（if !count! GTR %%b），希望专家提供帮助，对不起我的英语不好

文件text1.txt

    #       #
#Employee*.PDF,3
School*.PDF,4
Family*.PDF,5

文件夹c:\user\text

xxxxxxxxx.pdf
Employee1.pdf
Employee3.pdf
Employee2.pdf
Employee4.pdf
Employee5.pdf
Employee6.pdf
Employee7.pdf
School1.pdf
School3.pdf
School2.pdf
School4.pdf
School5.pdf
School6.pdf
School7.pdf

总代码：

@Echo off
@SETLOCAL ENABLEDELAYEDEXPANSION
for /f "delims=, tokens=1,2 eol=#" %%a in ('Type text1.txt') do (
    set /a count=0
    for /f %%x in ('dir C:\user\text\%%a /b') do (
        set /a count+=1
        if !count! GTR %%b ( 
            del "C:\user\text\%%x"
        )
    )
)

我不能在第二个for循环中使用%%b。运行All files are deleted后输出。

但是我只想删除：

Employee4.pdf
Employee5.pdf
Employee6.pdf
Employee7.pdf
School5.pdf
School6.pdf
School7.pdf

请帮帮我！

我尝试...添加set /a flag=%%b并更改比较条件= if !count! GTR !flag!

 for /f "delims=, tokens=1,2 eol=#" %%a in ('Type text1.txt') do (
     set /a count=0
     set /a flag=%%b
     for /f %%x in ('dir C:\user\text\%%a /b') do (
         set /a count+=1
         if !count! GTR !flag! ( 
             del "C:\user\text\%%x"
         )
    )
)

但是输出!flag! = 5，等于其最终值Family*.PDF,5。

Answer 1

您的第一个代码似乎运行良好（我添加了一些代码来添加演示文件，并在dir命令中进行了较小的更改以匹配环境-适应您的需求）：

@echo off
setlocal enabledelayedexpansion

REM create test environment:
for /l %%a in (1,1,7) do break>School%%a.pdf
for /l %%a in (1,1,7) do break>Family%%a.pdf
dir /b *.pdf
echo ---------
type text1.txt
echo ---------
pause


for /f "delims=, tokens=1,2 eol=#" %%a in ('Type text1.txt') do (
    set /a count=0
    for /f %%x in ('dir %~dp0%%a /b') do (
        set /a count+=1
        if !count! GEQ %%b echo "%%~fx"
    )
)

输出：

Family1.pdf
Family2.pdf
Family3.pdf
Family4.pdf
Family5.pdf
Family6.pdf
Family7.pdf
School1.pdf
School2.pdf
School3.pdf
School4.pdf
School5.pdf
School6.pdf
School7.pdf
---------
#       #
#Employee*.PDF,3
School*.PDF,4
Family*.PDF,5
---------
Drücken Sie eine beliebige Taste . . . 
"D:\tmp\test\School4.pdf"
"D:\tmp\test\School5.pdf"
"D:\tmp\test\School6.pdf"
"D:\tmp\test\School7.pdf"
"D:\tmp\test\Family5.pdf"
"D:\tmp\test\Family6.pdf"
"D:\tmp\test\Family7.pdf"

是的-我将GTR更改为GEQ以匹配您的示例。

Answer 2

dir命令在%%a之后需要通配符

for /f %%x in ('dir /b "C:\user\text\%%a*"') do (

从%%b读取的text1.txt不仅是数字，而且附加了扩展名.pdf。

可以使用

if !count! GTR %%~nb删除扩展名，或
修改test1.txt，使数字和扩展名之间使用另一个逗号。

如何在嵌套在批处理文件中的for循环中使用参数2？

2 个答案: