Vue Vant 实现顶部关键字搜索栏 vue中引入vant组件

<section class="city-search">
  <van-icon class="search-icon" name="search" />
  <input  placeholder="请输入城市关键字" v-model="KeyWord">
  <van-icon class="clear-icon" name="clear" v-show="KeyWord" @click="clearSearchInput" />
</section>

.city-search {
    background-color: #F7F8FA;
    display: flex;
    justify-content: flex-start;
    align-items: center;
    height: 2.3rem;
    width: 94vw;
    margin: 2vw 4vw;
    border-radius: 8px;
    .search-icon {
      margin-left: 5px;
    }
    input {
      margin: 0 1.5vw;
      background-color: #F7F8FA;
      border: 0px;
      font-size: 14px;
      flex: 1
    }
    .clear-icon { color: #999;}
  }

data() {
  return {
    KeyWord: '',
  }
},

methods: {
  clearSearchInput() {
    this.KeyWord = '';
  }
}