今天学习了Infix type的知识，来看看实战代码：

def main(args:Array[String]){
    object log { def >>:(data:String):log.type = {println(data);log}}
    "Hadoop" >>: "spark" >>: log
   
    val list = List()
    val newList = "A" :: "B" :: list
    println(newList)
   
    class Infix_Type[A,B]
    val infix:Int Infix_Type String = null
   
    case class Cons(first:String,second:String)
    val case_class = Cons("one","two")
    case_class match {case "one" Cons "two" => println("Spark!!!")}
       
  }
}