面向对象-继承

<script>
        function person(name,sex) {
            this.name=name;
            this.sex=sex;
        }

        person.prototype.showName=function () {
            alert('我的名字：'+this.name);
        }
        person.prototype.showSex=function () {
            alert('我的sex：'+this.sex);
        }
        //---------------------------------------------------
        function worker(name,sex,job) {
            person.call(this,name,sex);
            this.job=job;
        }
        worker.prototype=person.prototype;

        worker.prototype.showJob=function () {
            alert('我的job：'+this.job);
        }

        var p1=new person('blue','男');
        p1.showName();
        p1.showSex();
        
        var p2=new worker('blue','男','程序员');
        p2.showJob();
    </script>