ivor

powershell

$a=0;$f1='reshou.html';$f2='a.txt';gc $f2 | ForEach-Object {$a+=1;([regex]$pattern='(?<==)0+'+$a.ToString()+'|(?<=>)0+'+$a.ToString()).replace((gc $f1 -Raw),$_,2) | Out-File $f1}
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ivor

按楼主的需求50个关键字，效率影响不大。效率提升了6倍，全文搜索避免不了。因为楼主提供的reshou.html部分代码，前面或者后面还有不确定内容。

$a=0;$f1='reshou.html';$f1_con=gc $f1 -Raw;$f2='a.txt';gc $f2 | ForEach-Object {$a+=1;$f1_con=([regex]$pattern='(?<==)0+'+$a.ToString()+'|(?<=>)0+'+$a.ToString()).replace($f1_con,$_,2)};Out-File -InputObject $f1_con -FilePath "index.html"
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