uniapp循环出来的选项卡默认怎么选中

求帮助 怎么默认选中按钮一并显示内容111

<template>  
    <view style="display: flex;flex-direction: column">  
        <block v-for="(item,index) in list" :key="index">  
            <view style="margin-bottom:50px;display:flex;flex-direction:column">  
                <span>id：{{item.id}}</span>  
                <span>{{item.name}}</span>  
                <view>  
                    <block v-for="(item2,index2) in anniu" :key="index2">  
                        <span style="margin-right:20px"  @click="getShow(item.id,item2.type)">{{item2.name}}</span>  
                    </block>  
                </view>  
                <span v-if="item.id==id&&type==0" >{{item.con}}</span>  
                <span v-if="item.id==id&&type==1" >{{item.con2}}</span>  
            </view>  
        </block>  
    </view>  
</template>  

<script>  
export default{  
    data(){  
        return{  

            list:[  
                {"id":"1","name":"列表1111","con":'内容11111111111',"con2":'内容2222222'},  
                {"id":"2","name":"列表2222","con":'内容11111111111',"con2":'内容2222222'}  
            ],  
            anniu:[  
                {"name":"按钮一","type":"0"},  
                {"name":"按钮二","type":"1"}  
            ],  
            id:'',  
            type:''  
        }  
    },  

    methods:{  
        getShow(id,type){  
            this.id = id;  
            this.type = type  
        }  
    },  
}  
</script>