/**
* 访问修饰符
* 1.类的访问修饰符有private、protected、internal、public，可见性逐步加大
* 2.private仅本类可见
* 3.protected本类及其子类
* 4.internal模块内部可见
* 5.public全局可见
*
* 注意点
* 1.类的属性默认是public
*/
class House //房子类
class Flower //花类
class Courtyard { //院子类
public val house: House = House() //房子
private val flower: Flower = Flower() //花
}
class ForbiddenCity { //紫禁城类
protected val houses = arrayOf(House(), House()) //多个房子
internal val flowers = arrayOf(Flower(), Flower()) //多朵花
}
fun main(args: Array<String>) {
val courtyard = Courtyard()
val forbiddenCity = ForbiddenCity()
println(courtyard.house)
//private关键词修饰，该属性访问不到
// println(courtyard.flower)
//protected修饰的属性只有该类内部和其子类内部能访问到，直接访问不到
// println(forbiddenCity.houses)
println(forbiddenCity.flowers)
}
运行结果
