vue 點擊切換背景及組件

點擊切換背景色，同時切換組件，一套完整的代碼示例。喜歡的小夥伴點個贊

<template>
    <div>
        <div class="bottom">
       // 使用element 中的card 生成卡片
            <el-card class="box-card">
                <div>
                    <h4>導入數據</h4>
                    <span>請將這些文件進行分類</span>
                </div>
                <div class="tab">
              //使用 elenemt柵格化系統
                    <el-row :gutter="20">
                        <el-col :span="8" v-for="(item,index) in list" :key="index">
                           //通過判斷class切換顏色 最核心代碼
                            <p @click='app(item)' :class="{ red:changeRed == item.id}">{{item.name}}</p>
                        </el-col>
                    </el-row>
                    <div :is= "currentView" ></div>
                </div>
            </el-card>
        </div>
    </div>
</template>
<script>
//引入組件
import usb from "@/views/inc/usb.vue"
import newdata from "@/views/inc/new.vue"
import dele from "@/views/inc/delete.vue"
export default {
    components:{
        usb,
        newdata,
        dele,
    },
    data(){
        return{
            list:[
                {id:1,name:'全部數據',info:'usb'},
                {id:2,name:'新數據',info:'newdata'},
                {id:3,name:'刪除',info:'dele'},
            ],
            // 默認背景色
            changeRed:1,
            // 切換組件
            usb:'usb',
            newdata:'newdata',
            dele:'dele',
            currentView:'usb',
        }
      
    },
      methods: {
      //點擊切換組件
            app(item){
                 this.currentView = item.info;
                 this.changeRed = item.id
            }
        }
}
</script>
<style lang="scss" scoped>
i{
    font-style: normal;
    font-size: 12px;
}
// 切換背景
.red{
    background: blue;
}
// 頭部內容
.top{
    padding-top:1rem;
    width: 12rem;
    height: 12rem;
    margin:0 auto;
    text-align: center;
    p{
        span{
        display: block;
        }
    }
    .box-card{
      height: 12rem;
    }
}
// 中部內容
.con{
    padding-top:1rem;
    width: 90%;
    margin: 0 auto;
}
// 底部內容
.bottom{
     padding-top:1rem;
     width: 90%;
     margin: 0 auto;

}

</style>