获取一个对象的key值和value值

const obj = { name: 'Alice', age: 30, city: 'New York' };
const keys = Object.keys(obj); 
console.log(keys); // 输出 ["name", "age", "city"]

const values = Object.values(obj); 
console.log(values); // 输出 ["Alice", 30, "New York"]