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| // 父组件中
| <template>
| <div class="hello_world">
| <div>{{msg}}</div>
| <com-a></com-a>
| <button @click="changeA">点击改变子组件值</button>
| </div>
| </template>
|
| <script>
| import ComA from './article.vue'
| export default {
| name: 'HelloWorld',
| components: {
| ComA
| },
| data() {
| return {
| msg: 'Welcome'
| }
| },
|
| methods: {
| changeA() {
| // 获取到子组件A
| this.$children[0].messageA = 'this is new value'
| }
| }
| }
| </script>
|
|