package loaderman.democlass Person {    val name: String        get() = "name"    var v: Int = 0    var value: Int        get() = v        set(value) {            println("设值" + value)            v = value        }}

package loadermanimport loaderman.demo.Personfun main(arg: Array
     
      ) {    var p = Person()    println( p.v)    p.value=80    println( p.v)}
     

filed标识符，可以将filed 当作成员变量使用，也就是通过field读写属性值

package loaderman.democlass Person {    val name: String        get() = "name"    var value: Int=0        get() =field        set(value) {            println("设值" + value)            field = value        }}

package loadermanimport loaderman.demo.Personfun main(arg: Array
     
      ) {    var p = Person()    p.value=80    println( p.value)}