【ES6】嵌套对象解构-多次解构

let node = {
    personalInfo: {
        basicInfo: {
            name: 'mike',
            age: 25
        }
    },
    level: 3
};
// 属性重命名+默认值
let { personalInfo: { basicInfo: { name, age: myAge, country:nation='china' } } } = node;
console.log(name);// 'mike'
console.log(age);// Error: age is not defined
console.log(myAge);// 25
console.log(country);// Error: country is not defined
console.log(nation);// 'china'