vue3父组件打开子组件时刷新子组件
时间: 2023-11-15 14:57:21 浏览: 144
可以通过在父组件中使用 `key` 属性来实现刷新子组件。每当 `key` 值发生变化时,Vue 会销毁旧的子组件并创建新的子组件,从而达到刷新的效果。
具体实现方法如下:
1. 在父组件中定义一个变量,用于控制 `key` 值的变化。
2. 在子组件中使用 `key` 属性,并将其绑定到父组件中的变量上。
3. 当需要刷新子组件时,修改父组件中的变量,从而改变 `key` 值。
示例代码如下:
```html
<!-- 父组件 -->
<template>
<div>
<button @click="refreshChild">刷新子组件</button>
<child :key="childKey"></child>
</div>
</template>
<script>
import Child from './Child.vue'
export default {
components: {
Child
},
data() {
return {
childKey: 0 // 初始值为0
}
},
methods: {
refreshChild() {
this.childKey++ // 修改值触发子组件刷新
}
}
}
</script>
<!-- 子组件 -->
<template>
<div>{{ message }}</div>
</template>
<script>
export default {
data() {
return {
message: '子组件内容'
}
}
}
</script>
```
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