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创建从方法调用不带参数的函数需要以下语法: -转换方法调用与函数的参数不带参数
VAL d =显示_
如何使用参数进行方法调用时也是这样。 请找到下面的示例代码。
package paf
/**
* Created by mogli on 8/27/17.
*/
object PafSample {
def display(): Unit ={
println("display is a no argument method")
}
def evenOdd(input : Int) : Unit = if(input % 2 == 0) println(s"$input is even") else println(s"$input is odd")
def main(args: Array[String]): Unit = {
//This is working
val d = display _
executeFunction(d)
//TODO : convert to a function call that takes no arguments,
// so that, it can be passed to executeFunction as parameter
//val e = evenOdd(3) _
//executeFunction(e)
}
def executeFunction[B](f :() => B) : B = {
println("executing function")
f()
}
}
VAL d =显示_; executeSingleArgFunction(())(d)给CTE。 – mogli
什么是CTE?... – pedrofurla