问如何使用scala替换txt文件中的特定文本

EN

import java.io.{File, PrintStream}
import scala.io.{Codec, Source}

object ReplaceIOStringExample {
  val Sep = "~ϕ~"

  def main(args: Array[String]): Unit = {
    replaceFile("/tmp/test.data")
  }

  def replaceFile(path: String) : Unit = {
    val inputStream = Source.fromFile(path)(Codec.UTF8)

    val outputLines = inputStream.getLines()

    new PrintStream(path + ".bak") {
      outputLines.foreach { line =>
        val formatted = line.split(Sep).mkString(",") + "\n"
        write(formatted.getBytes("UTF8"))
      }
    }

    //delete old file
    new File(path).delete()

    //rename .bak file to the initial file name
    new File(path + ".bak").renameTo(new File(path))
  }
}