<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<script src="https://cdn.jsdelivr.net/npm/vue@2.7.10/dist/vue.js"></script>
<title>Document</title>
</head>
<body>
<script type="text/javascript">
Vue.config.productionTip = false;
let number = 888
let person = {
name: "老铁",
sex: "男"
}
Object.defineProperty(person, 'age', {
// value: 666,
// enumerable:true, //控制属性是否可以枚举，默认值是false
// writable:true, //控制属性是否可以被修改，默认值是false
// configurable:true //控制属性是否可以被删除，默认值是false
get() {
console.log('读取age...')
return number
},
set(value) {
console.log('写入age...')
number = value
}
})
console.log(person)
</script>
</body>
</html>
