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<!DOCTYPE html> <html> <body> <h1>JavaScript 对象构造器</h1> <p id="demo"></p> <script> // Person 对象的构造器函数 function Person(first, last, age, eye) { this.firstName = first; this.lastName = last; this.age = age; this.eyeColor = eye; } // 创建两个 Person 对象 var myFriend = new Person("Bill", "Gates", 62, "blue"); var myBrother = new Person("Steve", "Jobs", 56, "green"); // 向第一个对象添加 name 方法 myFriend.name = function() { return this.firstName + " " + this.lastName; }; // 显示全名 document.getElementById("demo").innerHTML = "My friend is " + myFriend.name(); </script> </body> </html>
运行结果
