一个最基本的继承显示结果为undefined

JScript code

function person(name,age)            {                this.name=name;                this.age=age;                this.showInheritance=function()                {                    document.write(this.name+" "+this.age);                }            }            function dog(name,age)            {                this.x=person;                this.x(name.age);            }            var dog1=new dog("bage",3);            dog1.showInheritance();

应该打印 bage 3才对啊

[解决办法]
function dog(name,age)
{
this.x=person;
this.x(name,age);
}

[解决办法]

JScript code

            function dog(name,age) {                this.x=person;                this.x(name, age); //刚才标注错了，你这里有低级错误，逗号写成点号了            }