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这样行不 （运行前请先备份文件）

@if(0)==(0) ECHO OFF
CScript.exe //NoLogo //E:JScript "%~f0" "1.txt"
PAUSE&GOTO :EOF
@end
var fso = new ActiveXObject('Scripting.Filesystemobject');
var text = fso.OpenTextFile(WScript.Arguments(0),1);
var arr = text.ReadAll().split(/\n/);
text = fso.OpenTextFile(WScript.Arguments(0),2,true)
WScript.StdOut.Write("行号：");
var len = WScript.StdIn.ReadLine();
WScript.StdOut.Write("旧字符串：");
var oldstr = WScript.StdIn.ReadLine();
WScript.StdOut.Write("新字符串：");
var newstr = WScript.StdIn.ReadLine();
arr[len-1] = arr[len-1].replace(new RegExp("\\b"+oldstr+"\\b",'gi'),newstr);
text.Write(arr.join('\n'));
text.Close()
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