class Creature{
val range:Int=10
val env:Array[Int]=new Array[Int](range)
}
class Ant extends Creature{
override val range=2
}
運行時env的length爲0,如果希望length爲我們認爲的2
需要
class Ant extends{
override val range=2
}with Creature
class Creature{
val range:Int=10
val env:Array[Int]=new Array[Int](range)
}
class Ant extends Creature{
override val range=2
}
運行時env的length爲0,如果希望length爲我們認爲的2
需要
class Ant extends{
override val range=2
}with Creature