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| // A.vue
|
| <template>
| <div>
| <comB></comB>
| <button @click="changeA">点击改变for</button>
| <br />tt: {{tt}}
| </div>
| </template>
|
| <script>
| import comB from './B.vue'
| export default {
| name: "A",
| data() {
| return {
| "tt": "fff"
| }
| },
|
| provide: {
| for: "demo"
| },
| components: {
| comB
| },
| methods: {
| changeA() {
| // 获取到子组件A
| this.for = 'this is new value'
| this.tt = Math.random()
| }
| }
| }
| </script>
|
|