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分享alert(b.aaa.class="二班");
alert(b.aaa.class);
var c=new wandiannao("liutian",20,20102110130203);
alert(c.aaa.class);
function wandiannao(name,age,number){
this.name=name;
this.age=age;
this.number=number;
this.look=function(){
alert("看电视");
}
this.aaa={class:"一班"};
} <script>
function Person(){}
Person.prototype.friends = ['tom','jack'];
var person1 = new Person();
var person2 = new Person();
person1.friends.push('rose');
alert(person1.friends);//tom,jack,rose
alert(person2.friends);//tom,jack,rose
</script>