<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>私有属性</title>
</head>
<body>
<script>
class Person {
// 公有属性
name;
// 私有属性，前面加#
#age;
#weight;
// 构造方法
constructor(name, age, weight) {
this.name = name;
this.#age = age;
this.#weight = weight;
}
intro() {
console.log(this.name); // 晓红
console.log(this.#age); // 18
console.log(this.#weight); // 45
}
}
// 实例化
const girl = new Person('晓红', 18, '45kg');
// 类外面不能直接访问类的私有属性，只能在类里面才做私有属性
console.log(girl.name); // 晓红
// console.log(girl.#age); // 报错
// console.log(girl.#weight);
girl.intro();
</script>
</body>
</html>