26_插槽

26_插槽

01_默认插槽

App.vue

<template>
  <div class="container">
    <Category title="美食" >
      <img src="https://s3.ax1x.com/2021/01/16/srJlq0.jpg" alt="" />
    </Category>
    <Category title="游戏" >
      <ul>
        <li v-for="(item, index) in games" :key="index">
          {{ item }}
        </li>
      </ul>
    </Category>
    <Category title="电影"> 
      <video controls src="http://clips.vorwaerts-gmbh.de/big_buck_bunny.mp4"></video>
    </Category>
  </div>
</template>

<script>
import Category from "./components/Category";
export default {
  name: "App",
  components: {
    Category,
  },
  data() {
    return {
      foods: ["火锅", "火锅", "火锅", "火锅"],
      games: ["王者", "王者", "王者", "王者"],
      films: ["<奇迹笨小孩>", "<奇迹笨小孩>", "<奇迹笨小孩>", "<奇迹笨小孩>"],
    };
  },
};
</script>
<style>
.container {
  display: flex;
  justify-content: space-around;
}
video{
  width: 100%;
}
</style>

Category.vue

<template>
  <div class="category">
    <h3>{{ title }}分类</h3>
    <!-- 定义一个插槽 等着使用者进行填充 -->
    <slot></slot>
    <!-- <slot>我是一些默认值，没有传递具体结构时，我会出现</slot> -->
  </div>
</template>

<script>
export default {
  name: "Category",
  props: ["title"],
};
</script>

<style>
.category {
  background-color: skyblue;
  width: 200px;
  height: 300px;
}
h3 {
  text-align: center;
  background-color: orange;
}
img{
    width: 100%;
}
</style>

02_具名插槽

App.vue

<template>
  <div class="container">
    <Category title="美食">
      <img
        slot="center"
        src="https://s3.ax1x.com/2021/01/16/srJlq0.jpg"
        alt=""
      />
      <a slot="footer" href="https://www.baidu.com">去百度</a>
    </Category>
    <Category title="游戏">
      <ul slot="center">
        <li v-for="(item, index) in games" :key="index">
          {{ item }}
        </li>
      </ul>
      <div slot="footer">
        <a href="https://www.baidu.com">去百度</a>
        <a href="https://www.baidu.com">去百度</a>
      </div>
    </Category>
    <Category title="电影">
      <video
        slot="center"
        controls
        src="http://clips.vorwaerts-gmbh.de/big_buck_bunny.mp4"
      ></video>
      <template v-slot:footer>
        <a href="https://www.baidu.com">去百度</a>
        <a href="https://www.baidu.com">去百度</a>
        <a href="https://www.baidu.com">去百度</a>
        <h4 style="text-align:center">前去观影</h4>
      </template>
    </Category>
  </div>
</template>

Category.vue

<template>
  <div class="category">
    <h3>{{ title }}分类</h3>
    <slot name="center"></slot>
    <slot name="footer"></slot>
  </div>
</template>

03_作用域插槽

数据在Category.vue，但 App.vue要用

App.vue

<template>
  <div class="container">
    <Category title="游戏">
      <template scope="atguigu">
        <ul>
          <li v-for="(item, index) in atguigu.games" :key="index">
            {{ item }}
          </li>
        </ul>
      </template>
    </Category>
    <Category title="游戏">
     <template scope="{games}">
        <ol>
          <li v-for="(item, index) in games" :key="index">
            {{ item }}
          </li>
        </ol>
      </template>
    </Category>
    <Category title="游戏">
      <template slot-scope="atguigu">
        <h4>
          <li v-for="(item, index) in atguigu.games" :key="index">
            {{ item }}
          </li>
        </h4>
      </template>
    </Category>
  </div>
</template>

Category.vue

<template>
  <div class="category">
    <h3>{{ title }}分类</h3>
    <slot :games="games">我是默认的一些内容</slot>
  </div>
</template>

<script>
export default {
  name: "Category",
  props: ["title"],
  data() {
    return {
      games: ["王者", "王者", "王者", "王者"],
    };
  },
};
</script>