components

<template>
  <div>
    <h2>我是关于</h2>
    <p>我是关于内容, 呵呵呵</p>
  </div>
</template>

<script>
  export default {
    name: "About",
    created() {
      console.log('About created');
    },
    destroyed() {
      console.log('About destroyed');
    }
  }
</script>

<style scoped>

</style>

home.vue

<template>
  <div>
    <h2>我是首页</h2>
    <p>我是首页内容, 哈哈哈</p>

    <router-link to="/home/news">新闻</router-link>
    <router-link to="/home/message">消息</router-link>

    <router-view></router-view>

    <h2>{{message}}</h2>
  </div>
</template>

<script>
  export default {
    name: "Home",
    data() {
      return {
        message: '你好啊',
        path: '/home/news'
      }
    },
    created() {
      console.log('home created');
    },
    destroyed() {
      console.log('home destroyed');
    },
    // 这两个函数, 只有该组件被保持了状态使用了keep-alive时, 才是有效的
    activated() {
      this.$router.push(this.path);
      console.log('activated');
    },
    deactivated() {
      console.log('deactivated');
    },
    beforeRouteLeave (to, from, next) {
      console.log(this.$route.path);
      this.path = this.$route.path;
      next()
    }
  }
</script>

<style scoped>

</style>

HomeMessage

<template>
  <div>
    <ul>
      <li>消息1</li>
      <li>消息2</li>
      <li>消息3</li>
      <li>消息4</li>
    </ul>
  </div>
</template>

<script>
  export default {
    name: "HomeMessage"
  }
</script>

<style scoped>

</style>

HomeNews

<template>
  <div>
    <ul>
      <li>新闻1</li>
      <li>新闻2</li>
      <li>新闻3</li>
      <li>新闻4</li>
    </ul>
  </div>
</template>

<script>
  export default {
    name: "HomeNews"
  }
</script>

<style scoped>

</style>

Profile

<template>
  <div>
    <h2>我是Profile组件</h2>
    <h2>{{$route.query.name}}</h2>
    <h2>{{$route.query.age}}</h2>
    <h2>{{$route.query.height}}</h2>
  </div>
</template>

<script>
  export default {
    name: "Profile",
    created() {
      console.log('Profile created');
    },
    destroyed() {
      console.log('Profile destroyed');
    }
  }
</script>

<style scoped>

</style>

User

<template>
  <div>
    <h2>我是用户界面</h2>
    <p>我是用户的相关信息, 嘿嘿嘿</p>
    <h2>{{userId}}</h2>
    <h2>{{$route.params.id}}</h2>
    <button @click="btnClick">按钮</button>
  </div>
</template>

<script>
  export default {
    name: "User",
    computed: {
      userId() {
        return this.$route.params.id
      }
    },
    created() {
      console.log('User created');
    },
    destroyed() {
      console.log('User destroyed');
    },
    methods: {
      btnClick() {
        // 所有的组件都继承自Vue类的原型
        console.log(this.$router);
        console.log(this.$route);

        console.log(this.name);
      }
    }
  }
</script>

<style scoped>

</style>