1.需求说明

1. my-tag 标签组件封装

​ (1) 双击显示输入框，输入框获取焦点

​ (2) 失去焦点，隐藏输入框

​ (3) 回显标签信息

​ (4) 内容修改，回车 → 修改标签信息

2. my-table 表格组件封装

​ (1) 动态传递表格数据渲染

​ (2) 表头支持用户自定义

​ (3) 主体支持用户自定义

2.效果

3.代码

<template>
  <div class="table-case">
    <table class="my-table">
      <thead>
        <tr>
          <th>编号</th>
          <th>名称</th>
          <th>图片</th>
          <th width="100px">标签</th>
        </tr>
      </thead>
      <tbody>
        <tr v-for="(item,index) in goods" :key="item.id">
          <td>{{ index+1 }}</td>
          <td>{{ item.name}}</td>
          <td>
            <img :src="item.picture" />
          </td>
          <td>
            <MyTag :id="item.id" :tag="item.tag"  @updateTag="updateTag"></MyTag>
          </td>
        </tr>
        
      </tbody>
    </table>
  </div>
</template>

<script>
import MyTag from './components/MyTag.vue'
export default {
  name: 'TableCase',
  components: {
    MyTag
  },
  methods:{
    updateTag(tag,id){
      
      this.goods.forEach((item) => {if(item.id==id){item.tag = tag}})
    }
  },
  data() {
    return {
      goods: [
        {
          id: 101,
          picture:
            'https://yanxuan-item.nosdn.127.net/f8c37ffa41ab1eb84bff499e1f6acfc7.jpg',
          name: '梨皮朱泥三绝清代小品壶经典款紫砂壶',
          tag: '茶具',
        },
        {
          id: 102,
          picture:
            'https://yanxuan-item.nosdn.127.net/221317c85274a188174352474b859d7b.jpg',
          name: '全防水HABU旋钮牛皮户外徒步鞋山宁泰抗菌',
          tag: '男鞋',
        },
        {
          id: 103,
          picture:
            'https://yanxuan-item.nosdn.127.net/cd4b840751ef4f7505c85004f0bebcb5.png',
          name: '毛茸茸小熊出没，儿童羊羔绒背心73-90cm',
          tag: '儿童服饰',
        },
        {
          id: 104,
          picture:
            'https://yanxuan-item.nosdn.127.net/56eb25a38d7a630e76a608a9360eec6b.jpg',
          name: '基础百搭，儿童套头针织毛衣1-9岁',
          tag: '儿童服饰',
        },
      ],
    }
  },
}
</script>

<style lang="less" scoped>
.table-case {
  width: 1000px;
  margin: 50px auto;
  img {
    width: 100px;
    height: 100px;
    object-fit: contain;
    vertical-align: middle;
  }

  .my-table {
    width: 100%;
    border-spacing: 0;
    img {
      width: 100px;
      height: 100px;
      object-fit: contain;
      vertical-align: middle;
    }
    th {
      background: #f5f5f5;
      border-bottom: 2px solid #069;
    }
    td {
      border-bottom: 1px dashed #ccc;
    }
    td,
    th {
      text-align: center;
      padding: 10px;
      transition: all 0.5s;
      &.red {
        color: red;
      }
    }
    .none {
      height: 100px;
      line-height: 100px;
      color: #999;
    }
  }

}
</style>

<template>
  <div class="my-tag">
    <input 
      v-if="isEdit"
      ref="inp"
      class="input"
      type="text"
      placeholder="输入标签"
      :value="tag"
      @blur="isEdit=false"
      @keyup.enter="updateTag"
    />
    <div class="text" v-else @dblclick="handleClick" >
      {{ tag }}
    </div>
  </div>
</template>

<script>
export default {
  props:{
    tag: String,
    id: Number
  },
  data(){
    return {
      isEdit: false
    }
  },
  methods:{
    handleClick(){
      this.isEdit = true,
      this.$nextTick(()=>{
        
        this.$refs.inp.focus()
      })
    },
    updateTag(e){
      this.$emit('updateTag',e.target.value,this.id)
      this.isEdit = false
    }
  }

}
</script>

<style lang="less" scoped>
  .my-tag {
    cursor: pointer;
    .input {
      appearance: none;
      outline: none;
      border: 1px solid #ccc;
      width: 100px;
      height: 40px;
      box-sizing: border-box;
      padding: 10px;
      color: #666;
      &::placeholder {
        color: #666;
      }
    }
  }
</style>