const obj = {
name:'qqq',
age:10,
fun:function(){},
children:[{id:1}]
}
// 1.获取对象的key
let keyArr = Object.keys(obj)
// 2.获取对象的value
let valueArr = Object.values(obj)
// 3.把对象转化为数组
let arr = Object.entries(obj)
// 4.遍历对象
for(let key in obj){
console.log(key,'对象的key')
console.log(obj[key],'对象的value')
}