package gjhs25import java.io.PrintWriter
import scala.collection.mutable.ListBuffer
import scala.io.Source
case class Student(name:String,yuwen:Int,shuxue:Int,yingyu:Int,java:Int,scala:Int,zongfen:Int,pingjunfen:Int,var mingci:Int)
object fspm {def main(args: Array[String]): Unit = {
// 准备一个空的Listval list = ListBuffer[Student]()
// 读入文件 - 按行读取
// drop(1)让迭代器跳过一个元素，因为第一行是表头，把第一行跳过去val cj = Source.fromFile("score.txt").getLines().drop(1)
// 跳过第一行
// print(cj)while(cj.hasNext){val arr = cj.next().split("，")
// println("姓名：",arr(0))
// println("语文：",arr(1).toInt)
// println("数学：",arr(2).toInt)
// println("英语：",arr(3).toInt)val total = arr(1).toInt+arr(2).toInt+arr(3).toInt+arr(4).toInt+arr(5).toInt
// println("总分：",total)
// println("平均分：",total/3)
// 添加学生到Listlist +=Student(arr(0),arr(1).toInt,arr(2).toInt,arr(3).toInt,arr(4).toInt,arr(5).toInt,total,total/5,0)}val orderList = list.sortWith((a, b) => a.zongfen > b.zongfen)var curScore = -1var mingci = 0;for (elem <- orderList) {if (elem.zongfen != curScore) {mingci += 1elem.mingci = mingcicurScore = elem.zongfen} else {elem.mingci = mingci}}list.foreach(println)
// list.foreach(println)val li1 = list.sortWith((a,b)=>a.zongfen>b.zongfen).slice(0,3)println("总分前三名：")li1.foreach(println)println("语文前三名")val li2 = list.sortWith((c,d)=>c.yuwen>d.yuwen).slice(0,3)li2.foreach(println)println("数学前三名")val li3 = list.sortWith((c, d) => c.shuxue > d.shuxue).slice(0, 3)li3.foreach(println)println("英语前三名")val li4 = list.sortWith((c, d) => c.yingyu > d.yingyu).slice(0, 3)li4.foreach(println)println("平均分前三名")val li5 = list.sortWith((c, d) => c.pingjunfen > d.pingjunfen).slice(0, 3)li5.foreach(println)
// 写入val writer = new PrintWriter("排名之后的结果.txt")list.foreach(s=>{writer.println(s"姓名：${s.name},语文：${s.yuwen},数学：${s.shuxue},英语：${s.yingyu},Java：${s.java},Scala：${s.scala},总分：${s.zongfen},平均分：${s.pingjunfen},名次：${s.mingci}")})writer.println("-"*40)li1.foreach(s=>{writer.println(s"姓名：${s.name},总分：${s.zongfen}")})writer.println("-" * 40)li2.foreach(s => {writer.println(s"姓名：${s.name},语文：${s.yuwen},总分：${s.zongfen}")})writer.println("-" * 40)li3.foreach(s => {writer.println(s"姓名：${s.name},数学：${s.yuwen},总分：${s.zongfen}")})writer.println("-" * 40)li4.foreach(s => {writer.println(s"姓名：${s.name},英语：${s.yuwen},总分：${s.zongfen}")})writer.println("-" * 40)li5.foreach(s => {writer.println(s"姓名：${s.name},平均分：${s.yuwen},总分：${s.zongfen}")})writer.close()}}