~~~ <div id="app"> <template v-for="(item,key) of obj"> <div>{{key}}--{{item}}</div> </template> </div> <script> var vm = new Vue({ el:"#app", data:{ obj:{ name:"chengchao", sex:"male", age:30 } } }) vm.$set(vm.obj,"name","zhang") Vue.set(vm.obj,"name","zhang") ~~~