执行完问什么不是输出属性标签，而是[object.object]
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<script>
var person={};
Object.defineProperties(person,{
one:{value:30,},
two:{value:303,enumerable:true,configurable:true}
});
var s=Object.getOwnPropertyDescriptor(person,'two');
document.write(s);
</script>
</body>
</html>
