简单录制如下

主要练习下界面和交互，顺带简单了解下 vue3 语法。

简单截图如下

首页

首页-猜你喜欢

分类

购物车

个人页面

部分文件代码

底部导航文件

<template>
  <div class="nav" id="myNav">
    <div
      class="nav-item-box"
      v-for="(item,index) in itemArr"
      :key="index"
    >
    <!-- :class="item.title == '书架' ? 'bookshelf_nav' : ''" -->
      <div
        class="nav-item"
        :style="name == item.navName ? 'color:rgb(255,63,63)' : ''"
        @click="to(item.navName)"
      >
        <div class="icon">
          <i :class="item.icon"></i>
        </div>
        <div class="title">{{item.title}}</div>
      </div>
    </div>
  </div>
</template>

<script>
/* eslint-disable */
import { defineComponent, ref, computed } from 'vue'
import { useRouter,useRoute } from 'vue-router'

export default defineComponent({
  setup() {
    let itemArr = ref([
      { title: '首页', navName: 'Index', icon: 'iconfont icon-shouye' }, 
      { title: '分类', navName: 'Classification', icon: 'iconfont icon-fenlei'},  
      { title: '购物车', navName: 'ShoppingCart', icon: 'iconfont icon-gouwuche' }, 
      { title: '我的', navName: 'Mine', icon: 'iconfont icon-wode' }, 
    ])

    let router = useRouter() // 全局路由对象
    let route = useRoute()   // 当前路由对象

    let name = computed(() =>{
      return route.name
    })

    let to = (val) =>{
      if (val != name.value){
        router.replace({
          name: val
        })
      }
    }
    return {
      itemArr,
      name,
      to
    }
  }
})
</script>

分类功能模块

<div class="content_container">
  <!-- 左侧 -->
  <div class="left_box">
    <div v-for="(item,index) in leftList" :key="index">
      <div :class="curNav.index == item.index ? 'active' : '' " class="left_box_title" @click="changeIndex(index)">{{item.title}}</div>
    </div>
  </div>

  <!-- 右侧 -->
  <div>
    <van-list
      v-if="curNav.index ==0"
      class="right_box"
      v-model:loading="loading"
      :finished="finished"
      finished-text="没有更多了"
      @load="onLoad"
    >
      <div v-for="item in list" :key="item" class="right_good">
        <div class="img "><img class="img" :src="item.src" alt=""></div>
        <div class="name">{{item.title}}</div>
      </div>
    </van-list>
    <div v-if="curNav.index !=0">
      <van-empty image="error" description="暂无数据" />
    </div>
  </div>
</div>
<script>
/* eslint-disable */
import { defineComponent, ref } from 'vue'
import { showToast } from 'vant';
import navCom from '@/components/onlineRetailer/MyNav.vue'

export default defineComponent({
  name: 'headerCom',
  components: {
    navCom
  },
  setup (props,ctx) {
    let value = ref('')
    let active = ref(0);
    // let onChange = (index) => showToast(`标签名 ${index + 1}`);
    // let onChange = (index) => {
    //   switch(index){
    //     case 0: showToast('1111111111111')
    //     break;
    //     case 1:  showToast('222222222222')
    //     break;
    //     default:  showToast('6666666666666')
    //   }
    // }
    let leftList = ref([
      { index: 0, title: "好货推荐" },
      { index: 1, title: "彩妆个护" },
      { index: 2, title: "食品饮料" },
      { index: 3, title: "鞋履箱包" },
      { index: 4, title: "母婴用品" },
      { index: 5, title: "生活家居" }
    ])
    let rightList = ref([
      { title: '麦菜' },
      { title: '芥兰' }
    ])

    let list = ref([
      { title: '坚定不移', src: require('@/assets/newProducts/2.jpg')},
      { title: '壮志凌云', src: require('@/assets/newProducts/1.jpg')},
      { title: '奋发图强', src: require('@/assets/newProducts/3.jpg')},
      { title: '坚持不懈', src: require('@/assets/newProducts/4.jpg')},
      { title: '朝气蓬勃', src: require('@/assets/newProducts/5.jpg')},
      { title: '力争上游', src: require('@/assets/newProducts/6.jpg')},
      { title: '坚定不移', src: require('@/assets/newProducts/2.jpg')},
      { title: '壮志凌云', src: require('@/assets/newProducts/1.jpg')},
    ]);
    let loading = ref(false);
    let finished = ref(false);
    let curNav = ref({
      index: 0, 
    })

    let changeIndex = (index) =>{
        curNav.value.index = index
    }

    let onLoad = () => {
      // 异步更新数据
      // setTimeout 仅做示例，真实场景中一般为 ajax 请求
      // setTimeout(() => {
        // for (let i = 0; i < 6; i++) {
        //   list.value.push(list.value.length + 1);
        // }

        // 加载状态结束
        loading.value = false;

        console.log('list.value.length',list.value.length)

        // 数据全部加载完成
        if (list.value.length >= 20) {
          finished.value = true;
        }
      // }, 1000);
    };

    return {
      value,
      active,
      // onChange,
      leftList,
      rightList,
      list,
      onLoad,
      loading,
      finished,
      curNav,
      changeIndex
    }
  }
})
</script>

简单记录，（完）😀