const vm = new Vue({
el: '#app',
data: {
name: 'zsl',
info: {
age: 18
}
}
})
console.log(vm.$data.name)
console.log(vm.name)
console.log(vm.$data.info === vm.info)
vm.info.age = 20
<div id="app">{{name}}/{{info.age}}</div>