var person ={ _name : "chen", age:21, set name(name) {this._name = name;},get name() {return this._name;}}
console.log(person.name)
输出”chen“
person.name="lunc";
输出"lunc"
person.name
输出"lunc"
例子2：
<script type="text/javascript">
var p = {
name:"chen",
work:function() {
console.log("wording...");
},
_age:18,
get age(){
return this._age;
},
set age(val) {
if (val<0 || val> 100) {//如果年龄大于100就抛出错误
throw new Error("invalid value")
}else{
this._age = val;
}
}
};
console.log(p.name);//输出chen
</script>
浏览器的直接调试结果： p.age "18" p.age=23 "23" p.age=200 Uncaught Error: invalid value
原文：http://www.cnblogs.com/chenjinxinlove/p/5195576.html