<script type="text/javascript">
        class Human {
            constructor(name) {
                this.name = name
                this.kingdom = 'animal'
                this.color = ['yellow', 'white', 'brown', 'black']
            }
            // 补全代码
            getName(){
                return this.name
            }
        }

        // 补全代码
        class Chinese extends Human {
            constructor(name,age){
                super(name,age)
                this.name = name
                this.age = age
            }
            getAge(){
                return this.age
            }

        }

    </script>
</body>