HTML

<view class="end-title">
　　<view @tap="change(0)" :class="{btna:btnnum == 0}">基本信息</view>
  　<view @tap="change(1)" :class="{btna:btnnum == 1}">公告信息</view>
　　<view @tap="change(2)" :class="{btna:btnnum == 2}">换区信息</view>
</view>
<view class="end-cont" :class="{dis:btnnum == 0}">0信息</view>
<view class="end-cont" :class="{dis:btnnum == 1}">1信息</view>
<view class="end-cont" :class="{dis:btnnum == 2}">2信息</view>

CSS
/* 将三个内容view的display设置为none(隐藏) */
.end-title{display:flex;}
.end-title view{flex-grow:1;text-align:center;}
.end-cont{display:none;background:#C8C7CC;}
.btna{color:#FFFFFF;background:#00A0FF;}
.dis{display:block;}
  

JS
data() {
   return {
      btnnum: 0,
   };
},
methods:{
   change(e) {
      this.btnnum = e
      console.log(this.btnnum)
  }
}


HTML循环实现tab选项卡

html
<view class="end-title">
     <view v-for="(item,index) in items" :key="index" :class="{btna:count == index}" @tap="change(index)">
        {{item}}
    </view>
</view>
<view class="end-cont" :class="{dis:btnnum == 0}">0信息</view>
<view class="end-cont" :class="{dis:btnnum == 1}">1信息</view>
<view class="end-cont" :class="{dis:btnnum == 2}">2信息</view>


CSS同上
.end-title{display:flex;}
.end-title view{flex-grow:1;text-align:center;}
.end-cont{display:none;background:#C8C7CC;}
.btna{color:#FFFFFF;background:#00A0FF;}
.dis{display:block;}

js

data() {
   return {
      btnnum: 0,
      items:["基本信息","公告信息","换区信息"],
      count:"",
  };
},
methods:{
  change(e) {
     this.count = e
     this.btnnum = e
     console.log(this.count)
  }
}