函數在scala中是頭等公民,函數也能夠做爲一個變量以參數的形式穿進去函數
def v(f:(Double)=>Double)=f(0.24) print(v((x:Double)=>3*x)) def mulmy(factor:Double)=(x:Double)=>factor*x val dd=mulmy(2) println(dd(12))