一个最基本的继承显示结果为undefined

[tutudtutud]

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

[乌镇程序员]

function dog(name, age) {
this.x=person;
this.x(name,age);
}

[001007009]

function dog(name,age)
{
this.x=person;
this.x(name,age);
}

[乌镇程序员]

            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
            }

[tutudtutud]

?我刚学 不太懂

[tutudtutud]

oh my god 3Q