lovecoding
/
vipAllDay


			
				
					
						
						
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							<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <script>
        // 类 class 声明
        class Person {
            // 1.属性 构造器下
            constructor(name,age){
                this.name = name;
                this.age = age;
            }
            // 2.方法
            say(){
                console.log("我叫" +this.name,"今年"+this.age+"岁");
            }
            // static 类调用
            static hello() {
                console.log("您好")
            }
        }
        let p1 = new Person("John",10);
        p1.name = '小小'
        console.log(p1);
        p1.say();
        // 实例化调用
        Person.hello();
        // p1.hello();

        // 类的继承 extends
        class Child extends Person {
            constructor(name,age,hobby) {
                // super 继承父类
                super(name,age);
                this.hobby = hobby
            }
            hi1() {
                console.log("hi1")
            }
        }
        let c1 = new Child("Lucy",20,'羽毛球');
        console.log(c1);
        c1.say();
        c1.hi1()
        Child.hello();
    </script>
</body>
</html>