javascript 繼承

 

function Person(name,age){
    this.name=name;
    this.age=age;
}
Person.prototype.getName=function(){
    return this.name;
}
Person.prototype.getAge=function(){
    return this.age;
}
function Person_Lxl(name,age,school){
    Person.apply(this,arguments);
    this.school=school;
    this.info=function(){
        alert(this.getName()+" , "+this.getAge()+" , "+this.getSchool());
    }
}
Person_Lxl.prototype=new Person();
Person_Lxl.prototype.getSchool=function(){
    return this.school;
}
Person_Lxl.prototype.info=function(){
    alert(this.getName()+" , "+this.getAge()+" , "+this.getSchool());
}

    var p=new Person_Lxl("lxl",25,"zh");
    var p1=new Person_Lxl("lhw",1,"yz");
alert(p.getName()+" , "+p.getAge()+" , "+p.getSchool());
alert(p1.getName()+" , "+p1.getAge()+" , "+p1.getSchool());
p.info();