周末班补充视频Scala第2课：动手编写和运行自己的第一个Scala函数式编程的实例.
package com.dtspark.scala.functional.basics
object MyFirstFunctionalAPP {
def add(x:Int,y:Int): Int = {
x+y
}
def sub(x:Int,y:Int):Int ={
x-y
}
def formatResult(x:Int,y:Int,f:(Int,Int)=>Int) :String= {
println("the result test : " + f(x,y))
"the result : %d ".format(f(x,y))
}
def main (args:Array[String]):Unit = {
println(formatResult(1,2,add))
println(formatResult(1,2,sub))
}
}
测试 结果
the result test : 3
the result : 3
the result test : -1
the result : -1
