lovecoding
/
W250511


			
				
					
						
						
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    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
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<body>
    <script>
        // 构造函数 
        // 构造函数的首字母一般大写
        // this 指向构造函数
        function Person(name,age){
            this.username = name;
            this.age = age;
            // this.talk = function(){
            //     console.log(`我叫${this.username},我今年${this.age}岁`)
            // }
        }
        // 原型上写方法
        Person.prototype.talk = function(){
            console.log(`我叫${this.username},我今年${this.age}岁`)
        }
        // 实例化对象
        let p1 = new Person("张三",18);
        let p2 = new Person("李四",20);
        console.log(p1);
        console.log(p2);
        p1.talk();
        p2.talk();
        

    </script>
</body>
</html>