复制代码 代码如下:

//首先创建父类

function Person(name, age, address) {

this.name = name;

this.age = age;

this.address = address;

}

//创建子类

function Student(score) {

this.score = score;

//可以用call方法或者是apply方法调用函数的构造函数

//调用父类的构造函数，通过call方法调用Person类的构造函数。这样就会在student中初始化Person对象，student也就有了Person的属性的副本

Person.call(this,"zhangsan",22,"中国北京！");

}

var student = new Student(100);

alert(student.address + student.score + "分");

//上述Person.call方法调用中第二个参数开始为传递的数据参数