scala 相关基础知识_scala jieba

scala入门

scala入门
scala教程
利用idea编写scala

map

可变map，需导入import scala.collection.mutable.Map

	//有初始值
    val map = Map("zhangsan"->30, "lisi"->40)
    map("zhangsan") += 20
    for((x,y) <- map) println(s"$x $y")
    
    //无初始值
    val map:Map[String,Int] = Map()
    map += ("zhangsan"->20)
    map("zhangsan") += 20
    for((x,y) <- map) println(s"$x $y")

  //可变map示例
      val map:Map[String,Int] = Map()
      map += ("zhangsan"->20)
      map += ("lishi"->20)
      map("zhangsan") += 20
      for((x,y) <- map) println(s"$x $y")
      for((x,y) <- map) {
        println(x)
        println(y)
      }
      if( map.contains( "lishi" )){
        println("lishi 键存在，对应的值为 :"  + map("lishi"))
      }else{
        println("lishi 键不存在")
      }
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不可变map形式与可变map相同，不导包就行。

调用jieba

导包xml：

<dependency>
            <groupId>com.huaban</groupId>
            <artifactId>jieba-analysis</artifactId>
            <version>1.0.2</version>
        </dependency>
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应用：

import com.huaban.analysis.jieba.JiebaSegmenter
var str = new JiebaSegmenter().sentenceProcess(curtitle).toArray() //调用jieba分词
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