vue 组件封装 综合案例

**创建 工程：
H:\java_work\java_springboot\vue_study
ctrl按住不放 右键 悬着 powershell

H:\java_work\java_springboot\js_study\Vue2_3入门到实战-配套资料\01-随堂代码素材\day05\准备代码\11-综合案例-商品列表

vue --version
vue create v-fengzhuang-example-demo
cd v-fengzhuang-example-demo
npm install --save-dev less-loader less
npm run serve

main.js

import Vue from 'vue'
import App from './App.vue'

Vue.config.productionTip = false


//封装全局指令 focus
Vue.directive('focus', {

  // 指令所在的dom元素，被插入到页面中时触发
  inserted(el) {
    el.focus();
  }
})

new Vue({
  render: h => h(App),
}).$mount('#app')

App.vue

<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>
          <td>1</td>
          <td>梨皮朱泥三绝清代小品壶经典款紫砂壶</td>
          <td>
            <img
              src="https://yanxuan-item.nosdn.127.net/f8c37ffa41ab1eb84bff499e1f6acfc7.jpg"
            />
          </td>
          <td>
            <!-- 标签组件 -->
            <MyTag v-model="tempText"></MyTag>
          </td>
        </tr>
        <tr>
          <td>1</td>
          <td>梨皮朱泥三绝清代小品壶经典款紫砂壶</td>
          <td>
            <img
              src="https://yanxuan-item.nosdn.127.net/221317c85274a188174352474b859d7b.jpg"
            />
          </td>
          <td>
            <!-- 标签组件 -->
            <MyTag v-model="tempText2"></MyTag>
          </td>
        </tr>
      </tbody>
    </table>
  </div>
</template>

<script>
import MyTag from "./components/MyTag.vue";
export default {
  name: "TableCase",
  components: { MyTag },
  data() {
    return {
      tempText: "水杯",
      tempText2: "篮球",
      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>

MyTag.vue

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

<script>
export default {
  data() {
    return {
      isEdit: false,
    };
  },
  props: {
    value: String,
  },

  methods: {
    handleClick() {
      this.isEdit = true;

      // this.$nextTick(() => {
      //   this.$refs.inp.focus();
      // });
    },
    handleEnter(e) {
      if (e.target.value.trim() === "") return alert("标签内容不能为空");
      console.log("回车了");
      console.log(e.target.value);
      this.$emit("input", e.target.value);
      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>

修改后：
：src是 v-bind:src的简写方式获取data数据函数中的值