lovecoding
/
W250913


			
				
					
						
						
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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>
        // 定义一个类
        class Person{
            // 构造函数
            constructor(name,age){
                // 初始化属性
                this.name = name;
                this.age = age;
            }
             // 方法
             say(){
                console.log(`我是${this.name},我今年${this.age}岁`);
             }
        }
        // let p1 = new Person("张三",18);
        // p1.say();

        // 类的继承
        class Student extends Person{
            constructor(name,age,school){
                // 调用父类构造函数
                super(name,age);
                // 初始化属性
                this.school = school;
            }
             // 方法
             saySchool(){
                console.log(`我是${this.name},我今年${this.age}岁,我是一个人,我去${this.school}上学`);
             }
        }

        let s1 = new Student("李四",18,"清华大学");
        s1.say();
        s1.saySchool();
    </script>
</body>
</html>