SBT项目中的“资源”文件夹有哪些用途?

package

  def copyFileFromResource(source: String, dest: File) {
    val in = getClass.getResourceAsStream(source)
    val reader = new java.io.BufferedReader(new java.io.InputStreamReader(in))
    val out = new java.io.PrintWriter(new java.io.FileWriter(dest))
    var line: Option[String] = None
    line = Option[String](reader.readLine)
    while (line != None) {
      line foreach { out.println }
      line = Option[String](reader.readLine)
    }
    in.close
    out.flush
  }