vue组件写的简易移动页面

.在components里面定义四个组件

2.引入

3.源码
<template>
  <div>
    <div>
      <component :is="tap"></component>
    </div>
    <footer>
      <div @click="app('SY')":class="{'active':tap=='SY'}">
        <span>1</span>
        <span>首页</span>
      </div>
      <div  @click="app('CWQ')":class="{'active':tap=='CWQ'}">
        <span>2</span>
        <span>宠物圈</span>
      </div>
      <div @click="app('shop')":class="{'active':tap=='shop'}">
        <span>3</span>
        <span>便利店</span>
      </div>
      <div @click="app('my')":class="{'active':tap=='my'}">
        <span>4</span>
        <span>我的</span>
      </div>
    </footer>
  </div>
</template>
<script>
import SY from "../components/SY.vue";
import CWQ from "../components/CWQ.vue";
import shop from "../components/shop.vue";
import my from "../components/my.vue";
export default {
  data() {
    return {
      tap: 'SY'    };
  },
  components: {
    SY,
    CWQ,
    shop,
    my
  },
  methods: {
    app(str){
      this.tap=str
    }
  },
};
</script>
<style scoped>
footer {
  position: fixed;
  bottom: 0;
  width: 100%;
  display: flex;
  justify-content: space-around;
}
footer div {
  /* width: 50px; */
  display: flex;
  flex-direction: column;
}
.active{
  color: aqua;
}
</style>