浅谈JavaScript 继承机制的实现-tutorial js-php.cn

对象冒充的方法实现:

[javascript]
function Human() { //定义Human类
    this.species = "Human";
}
function Sex(sex) {     //定义Sex类
    this.sex = sex;
}
function Chinese(name,sex) {
    this.name = name;
    this.newMethod1 = Human;    //对象冒充,指向Human对象
    this.newMethod1();          //调用方法,实现继承
    delete this.newMethod1; //删除该对象的引用,避免错误调用

    this.newMethod2 = Sex;      //对象冒充,指向Sex对象
    this.newMethod2(sex);       //调用方法,实现继承
    delete this.newMethod2; //删除该对象的引用,避免错误调用
}
var chin1 = new Chinese("小明","Male");
function Human() { //定义Human类
this.species = "Human";
}
function Sex(sex) { //定义Sex类
this.sex = sex;
}
function Chinese(name,sex) {
this.name = name;
this.newMethod1 = Human; //对象冒充,指向Human对象
this.newMethod1();   //调用方法,实现继承
delete this.newMethod1; //删除该对象的引用,避免错误调用

this.newMethod2 = Sex; //对象冒充,指向Sex对象
this.newMethod2(sex);  //调用方法,实现继承
delete this.newMethod2; //删除该对象的引用,避免错误调用
}
var chin1 = new Chinese("小明","Male");