Scala文件的读写操作

def main(args: Array[String]) {
        val file = Source.fromFile("D:\\test.txt") 
        for (line <- file.getLines){ println(line)}
        file.close
        
        val webFile = Source.fromURL("http://spark.apache.org/")
        webFile.foreach(print)
        webFile.close
        
        val writer = new PrintWriter(new File("scalaFile.txt" )) //
        for (i <- 1 to 100) writer.println(i)
        writer.close()
        
        print("Please enter your input : " )
        val line = readLine
        println("Thanks, you just typed: " + line)
    }