摘要:
package myfirstimport kotlin.reflect.KPropertyclass A { var index=0 var oldValue:Int=1 var newValue:Int by this.oldValue//新值通过旧值改变来赋值,设置旧值得属性构造器 priva 阅读全文
摘要:
package myfirstimport kotlin.reflect.KPropertyclass A { var i:Int=1 var j:Int by this.i//通过旧值改变新值,执行顺序get,by,set}private operator fun Int.setValue(a: 阅读全文