scala

package test_42
import java.io.PrintWriter
import scala.io.Source

object Test {
  def main(args: Array[String]): Unit = {
    val content=Source.fromFile("1.txt").mkString
    //println(content)

    val arr=content.split("\\W+")
    val m1=scala.collection.mutable.Map[String,Int]()
    arr.foreach(word=>{
      if (m1.contains(word)){
        m1(word)+=1
      }else{
        m1(word)=1
      }
    })
    val sortedM1=m1.toList.sortWith((a,b)=>a._2>b._2).filter(a=>a._1.length>2).slice(0,15)
    val writer=new PrintWriter("3.txt")
    writer.println("统计的结果是:")
    sortedM1.foreach{case(word,cishu)=>println(s"${word}${cishu}")}
    writer.close()
  }

}