Category代码：

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

<script>
  export default{
    name:'Category',
    props:['title'],
    data(){
      return {
        games:['和平精英','红色警戒','穿越火线'],
      }
    },
  }
  
</script>
  
<style>
.category{
  background-color: green;
  width:200px;
  height: 300px;
}
h3{
  text-align: center;
  background-color: orange;
}
img{
  width: 100%;
}
video{
  width: 100%;
}
</style>

App.vue代码：

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

    <Category title="游戏">
      <template scope="{games}">
        <ol>
          <li style="color:red" v-for="(g,index) in games" :key="index">{{g}}</li>
        </ol>
      </template>
    </Category>

    <Category title="游戏">
      <template slot-scope="{games}">
        <h4 v-for="(g,index) in games" :key="index">{{g}}</h4>
      </template>
    </Category>
  </div>
</template>

<script>
import Category from './components/Category.vue'
export default {
  name: 'App',
  components:{Category},
}
</script>

<style scroped>
.container,.foot{
  display: flex;
  justify-content: space-around;
}
video{
  width:100%;
}
h4{
  text-align: center;
}
</style>

效果：