对象拓展运算符

拓展运算符（...）用于取出参数对象所有可遍历属性然后拷贝到当前对象

//对象复制
let person1 = {name: "Amy", age: 15}
let someone1 = { ...person1}
//console.log(someone1)

//对象合并
let age = {age: 15}
let name = {name: "Amy"}
let person2 = {...age, ...name}
console.log(person2)