老师HomeIcons界面没显示，页面也没报错

来源：2-8 Vue项目首页 - 图标区域逻辑实现

慕仰7236035

2020-12-20 21:19:10

<template>
  <div class="icons" :options="swiperOption">
    <swiper>
      <swiper-slide v-for="(page, index) of pages" :key="index">
        <div class="icon" v-for="item of page" :key="item.id">
          <div class="icon-img">
            <img class="icon-img-content" :src="item.imgUrl" />
          </div>
          <p class="icon-desc">{{ item.desc }}</p>
        </div>
      </swiper-slide>
    </swiper>
  </div>
</template>

<script>
export default {
  name: "HomeIcons",
  data() {
    return {
      iconList: [
        {
          id: "0001",
          imgurl:
            "http://img1.qunarzz.com/piao/fusion/1611/54/ace00878a52d9702.png",
          desc: "景点门票",
        },
        {
          id: "0002",
          imgurl:
            "http://img1.qunarzz.com/piao/fusion/1711/df/86cbcfc533330d02.png",
          desc: "滑雪季",
        },
        {
          id: "0003",
          imgurl:
            "http://img1.qunarzz.com/piao/fusion/1710/a6/83f636bd75ae6302.png",
          desc: "泡温泉",
        },
        {
          id: "0004",
          imgurl:
            "http://img1.qunarzz.com/piao/fusion/1611/35/2640cab202c41b02.png",
          desc: "动植园",
        },
        {
          id: "0005",
          imgurl:
            "http://img1.qunarzz.com/piao/fusion/1611/d0/e09575e66f4aa402.png",
          desc: "游乐园",
        },
        {
          id: "0007",
          imgurl:
            "http://img1.qunarzz.com/piao/fusion/1611/59/569d3c096e542502.png",
          desc: "必游榜单",
        },
        {
          id: "0008",
          imgurl:
            "http://img1.qunarzz.com/piao/fusion/1611/17/4bd370f3eb1acd02.png",
          desc: "演出",
        },
        {
          id: "0009",
          imgurl:
            "http://img1.qunarzz.com/piao/fusion/1611/7f/b1ea3c8c7fb6db02.png",
          desc: "城市观光",
        },
      ],
    };
  },
  computed: {
    pages() {
      //计算属性，名为pages，需跟v-for中的变量保持一致
      const pages = []; //自定义常量，名为pages,用来保存遍历后的值
      this.list.forEach((item, index) => {
        //index是从0开始的，直到8，那么index/8，然后再取整，值为8个0和1个1，所以index的值只有0和1
        const page = Math.floor(index / 8);
         //判断pages[0]，pages[1]是否有值，没有值就是初始化为空，所以就有了空数组
        if (!pages[page]) {
          pages[page] = [];
        }
          //在pages[0]和pages[1]数组中添加内容
        pages[page].push(item);
      });
      return pages;//return pages返回的就是计算属性pages()最终的值
    },
  },
};
</script>
<style lang="stylus" scoped>
@import '~@/assets/styles/varibles.styl';
@import '~@/assets/styles/mixins.styl';

.icons >>> .swiper-container {
  height: 0;
  padding-bottom: 50%;
}

.icons {
  margin-top: 0.1rem;

  .icon {
    position: relative;
    overflow: hidden;
    float: left;
    width: 25%;
    height: 0;
    padding-bottom: 25%;

    .icon-img {
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      box-sizing: border-box;
      padding: 0.1rem;
      bottom: 0.44rem;

      .icon-img-content {
        display: block;
        margin: 0 auto;
        height: 100%;
      }
    }

    .icon-desc {
      position: absolute;
      left: 0;
      right: 0;
      bottom: 0;
      height: 0.44rem;
      line-height: 0.44rem;
      text-align: center;
      color: $darkTextColor;
      ellipsis();
    }
  }
}
</style>