kotlin简单回调

fun onLook(view: View?){
		val student = Student()
        student.mLookBooks = object : Student.LookBooks {

            override fun onLook(content: String?) {
                println("zzx===>content: $content")
            }
        }
        student.run("我准备大声读书了啊")
}

class Student {

    var mLookBooks: LookBooks? = null
        get() = field
        set(value){
            println("zzx===>进来了")
            field = value
        }

    fun run(content: String?) {
        mLookBooks?.onLook(content)
    }

    interface LookBooks {
        fun onLook(content: String?)
    }

}