vue如何实现组件切换

一、使用条件渲染 (v-if)

<template><div><button @click="currentView = 'ComponentA'">Show Component A</button><button @click="currentView = 'ComponentB'">Show Component B</button><component-a v-if="currentView === 'ComponentA'"></component-a><component-b v-if="currentView === 'ComponentB'"></component-b></div>
</template>
<script>
import ComponentA from './ComponentA.vue';
import ComponentB from './ComponentB.vue';
export default {data() {return {currentView: 'ComponentA'};},components: {ComponentA,ComponentB}
};
</script>

二、使用动态组件 (component)

<template><div><button @click="currentView = 'ComponentA'">Show Component A</button><button @click="currentView = 'ComponentB'">Show Component B</button><component :is="currentView"></component></div>
</template><script>
import ComponentA from './ComponentA.vue';import ComponentB from './ComponentB.vue';export default {data() {return {currentView: 'ComponentA'};},components: {ComponentA,ComponentB}
};
</script>

 三、点击按钮切换组件

<template><div><button @click="toggleComponent">切换组件</button><div v-if="showComponent"><ComponentA /></div><div v-else><ComponentB /></div></div>
</template><script>
import ComponentA from './ComponentA.vue'
import ComponentB from './ComponentB.vue'export default {data() {return {showComponent: true}},methods: {toggleComponent() {this.showComponent = !this.showComponent}},components: {ComponentA,ComponentB}
}
</script>

<template><div><button @click="toggleComponent">切换组件</button><transition name="fade"><component :is="currentComponent" /></transition></div>
</template><script>
import ComponentA from './ComponentA.vue'
import ComponentB from './ComponentB.vue'export default {data() {return {currentComponent: 'ComponentA'}},methods: {toggleComponent() {this.currentComponent = this.currentComponent === 'ComponentA' ? 'ComponentB' : 'ComponentA'}},components: {ComponentA,ComponentB}
}
</script><style>
.fade-enter-active,
.fade-leave-active {transition: opacity 0.5s;
}.fade-enter,
.fade-leave-to {opacity: 0;
}
</style>