vue基础 动态组件 实现相互切换并缓存数据

动态组件
准备工作

组件1：Acomponent
内容部分：

<template>
    <div>{{msg}}</div>
</template>
<script>
export default {
    name:"Dynamic",
    data() {
        return {
            msg:"welcome 组件A!"
        }
    },
}
</script>

组件2：Bcomponent
内容部分：

<template>
    <div>{{msg}}
        <button @click="ChangeContent">修改b的内容</button>
    </div>
    
</template>
<script>
// import func from 'vue-editor-bridge'
export default {
    name:"Dynamic",
    data() {
        return {
            msg:"welcome 组件B!"
        }
    },
    methods:{
        ChangeContent:function(){
            this.msg="被修改后的数据"
        }
    }
}
</script>

组件相互切换，

子组件引用AComponent、BComponent

<template>
    <div>
        动态组件:
        <button @click="Adyc">A组件</button>
        <button @click="Bdyc">B组件</button>
       
        <!-- 组件相互切换并实现修改后缓存 -->
        <keep-alive>
             <component v-bind:is="currentTabComponent"></component>
        </keep-alive>
        <!-- 组件相互切换，但不会缓存数据 -->
        <!-- <component v-bind:is="currentTabComponent"></component> -->

    </div>
</template>
<script>
import Adynamic from "./AComponent"
import Bdynamic from "./BComponent"
export default {
    name:"Dynamic",
    data() {
        return {
            msg:"welcome DynamicDemo!",
            currentTabComponent:AComponent
        }
    },
    components:{
        Acomponent,
        Bcomponent
    },
    methods:{
        Adyc:function(){
           this.currentTabComponent=AComponent
        },
        Bdyc:function(){
            this.currentTabComponent=BComponent
        }
    }
}
</script>

父组件：

<template>

    <div>
   
        <MyComponent/>
    </div>
</template>



<script>
import HelloWorld from './components/HelloWorld'
import Dynamic    from './components/MyComponent.vue'

export default {
  name: 'App',
  components: {
    HelloWorld,
    MyComponent
  }
}
</script>

<style>
#app {
  font-family: 'Avenir', Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-align: center;
  color: #2c3e50;
  margin-top: 60px;
}
</style>