网站介绍:文章浏览阅读49次。trait Tdemo01 {def add2(x:Int,y:Int):Int def show2}trait Tdemo {def add(x:Int,y:Int):Int def show}import day03.Tdemoclass TraitDemo01 extends Tdemo with Tdemo01{ override def show: _scala特质累加x,y重设
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