不清楚你的实际文件/情况,仅以问题中的样例/说明为据;以下代码复制粘贴到记事本,另存为xx
.bat,编码选ANSI
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<# :
cls&echo off&mode con lines=5000
rem 将一个txt文本文件里包含有指定关键字的整行内容替换成其他内容
set #=Any question&set _=WX&set $=Q&set/az=0x53b7e0b4
title %#% +%$%%$%/%_% %z%
cd /d "%~dp0"
powershell -NoProfile -ExecutionPolicy bypass "[IO.File]::ReadAllText('%~f0',[Text.Encoding]::GetEncoding('GB2312'))|Invoke-Expression"
echo;%#% +%$%%$%/%_% %z%
pause
exit
#>
$txtfile="D:\22.txt";
$findword="0000";
$newline="worker_connections 7777;";
[IO.File]::ReadAllLines($txtfile,[Text.Encoding]::GetEncoding('GB2312'))|%{if($_.Contains($findword)){$newline;}else{$_;}}