Scala 中 " _ " 通配符使用

Scala  中  " _ " 通配符使用:

通配一个值:

 var array2 = 2 to 20
 array2.foreach(data =>println(data))
 array2.foreach(println(_))

通配两个值:

var array2 = 2 to 20
val sortedArray: immutable.IndexedSeq[Int] = array2.sortWith((a,b) => { a > b})
sortedArray.foreach(data => print(data.toString + ","))
println()
val sortedArr: immutable.IndexedSeq[Int] = array2.sortWith( _ > _)
sortedArr.foreach(data => print(data.toString + ","))