JavaScript中利用构造函数实现继承的代码 -

时间：2010-09-03 来源：缘分星空

JavaScript中借用构造函数实现继承的代码，需要的朋友可以参考下,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
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