codegay

nim语言版

import os
import strutils

var dir = getAppDir()
var srctxt = getAppDir() / "a.txt"

for f in walkDirRec(dir):
    var (dir, name, ext) = splitFile(f)
    if ext.toLower == ".dat":
        copyFile(srctxt, f)
        echo srctxt, "  ===>>   ", f
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