powershell - Padleft函数在PowerShell中带有序列号

Question

我需要在txt文件的每一行的开头添加固定长度的递增编号。例如:

0001 aaaaaaaaaaa0002 bbbbbbbbbb...0010 gggggggggg

I created a .bat file to run a PowerShell which should solve the problem:

@echo off &setlocal
set "path=C:\Users..."
set "filein=%~1"
set "fileout=%filein%_out"

setlocal EnableDelayedExpansion

call %SystemRoot%\system32\WindowsPowerShell\v1.0\powershell.exe -Command "& {(Get-Content %path%\%filein%.txt) |ForEach-Object {$_.Insert(0,($id++).PadLeft(10,'0'))} |Set-Content %path%\%fileout%.txt}"

但这是行不通的。可能存在语法错误。

Answer 1

由于您添加了[batch-file]标签-这是一个纯批处理解决方案:

@echo off
setlocal enabledelayedexpansion
set count=0
(for /f "delims=" %%A in (input.txt) do (
    set /a count+=1
    set "index=00000!count!"
    echo !index:~-4! %%A
))>Output.txt