v-bind:title="msg"
// 简写：:title="msg"
<!-- 完整语法 -->
<a v-bind:href="url" rel="external nofollow" rel="external nofollow" ></a>
<!-- 缩写 -->
<a :href="url" rel="external nofollow" rel="external nofollow" ></a>

<!-- 完整语法 -->
<a v-on:click="doSomething"></a>
<!-- 缩写 -->
<a @click="doSomething"></a>

<input type="text" v-model="message" placeholder="edit me">
<p>Message is: {{ message }}</p>

<div v-for="item in items">
 {{ item.text }}
</div>

<!-- item 为当前项，index 为索引 -->
<p v-for="(item, index) in list">{{item}} -- {{index}}</p>

<!-- item 为值，key 为键，index 为索引 -->
<p v-for="(item, key, index) in obj">{{item}} -- {{key}}</p>

<template>

 <div>
  <p v-text="msgData"></p>
  <p>{{ msgData }}</p>

  <p v-text="msgHtml"></p>
  <p v-html="msgHtml"></p>

  <input v-model="msgModel" type="text"/>
  <p>v-model数据：<span v-text="msgModel"></span></p>

  <button v-on:click="alert">按钮</button>

  <p v-for="(item, index) in list" :key="index">{{item}} -- {{index}}</p>
 </div>
</template>

<script>
 export default {
  data () {
   return {
    message: 'Vue的生命周期',
    msgData: '消息数据',
    msgHtml: '<span style="color: red">消息HTML</span>',
    msgModel: '',
    list: [
     'apple', 'banana', 'fruit'
    ]
   }
  },
  methods: {
   alert () {
    this.$notify({
     title: '请求异常',
     message: '通知'
    })
   }
  },
 mounted: function () {
   console.log('------mounted 挂载结束状态------')
  },
}
</script>