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interface MyInterface { var name:String //name 属性, 抽象的 fun bar() fun foo() { // 可选的方法体 println("foo") } } class Child : MyInterface { override var name: String = "w3xue" //重载属性 override fun bar() { // 方法体 println("bar") } } fun main(args: Array<String>) { val c = Child() c.foo(); c.bar(); println(c.name) }
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