文件读写——全文单词统计

object class1 {
  def main(args: Array[String]): Unit = {
    val lines = scala.io.Source.fromFile("score").getLines()

    lines.next()
    while(lines.hasNext){
      val line = lines.next()
      val li = line.split("，")
      val name = li(0)
      val yuwen = li(1)

      println(s"${name},${yuwen}")
    }
  }

}

姓名，语文，数学，英语
小花，90，88，70
冬冬，88，91，90
宁宁，100，89，88
智敏，82，90，91

object class2 {
  case class Stu(name:String, yuwen:Double, shuxue:Double,yingyu:Double)

  def main(args: Array[String]): Unit = {
    //// 0. 创建一个可变list
    val stulist = scala.collection.mutable.ListBuffer[Stu]()
    //// 1. 读入文件 迭代器
    val lines = scala.io.Source.fromFile("score").getLines()
    lines.next() // 跳过第一行

    while(lines.hasNext){
      val line = lines.next()
      //// 字符串拆分
      val li = line.split("，")
      stulist += Stu(li(0), li(1).toDouble, li(2).toDouble, li(3).toDouble)
    }
    // 读入数据结束
     println("读入数据结束")

    stulist.foreach(stu => {
      val total = stu.yuwen + stu.yingyu + stu.shuxue
      val avg = total / 3
      println(s"${stu.name}, 总分: ${total}, 平均分: ${avg}")
    })
  }
}