一天一段scala代码（十二）

一天一段scala代码（十二）

       为了更好的驾驭spark，最近在学习scala语言特性，主要看《快学scala》，顺便把一些自己认为有用的代码记下来。

package examples

object Example12 extends App{
  
def mulBy1(factor:Double)=(x:Double)=>factor*x

def mulBy2(factor:Double)(x:Double)=factor*x


val triple = mulBy1(3)
println(triple(8))

println(mulBy1(3)(8))
println(mulBy2(3)(8))



def myUntil1(myCondition: =>Boolean)(myBlock: =>Unit)
{
  if(!myCondition)
  {
    myBlock
    myUntil1(myCondition)(myBlock)
  }
}

var x=10
myUntil1(x==0)
{
  x-=1
  println(x)
}



def myUntil2(myCondition: =>Boolean)(myBlock: ()=>Unit)
{
  if(!myCondition)
  {
    myBlock()
    myUntil2(myCondition)(myBlock)
  }
}

x=10
myUntil2(x==0){()=>
  x-=1
  println(x)
}

val add : Int => Int =>Int = x => y => x + y 
println(add(1)(2))

val add2:(Int) =>( Int =>Int )= (x) => (y => x + y) 
println(add2(1)(2))


}

本文作者：linger

本文链接： http://blog.youkuaiyun.com/lingerlanlan/article/details/44858225