Vue中Mustache插值语法与v-bind指令详解

 <div id="app">
      <h2>{{message}}</h2>
      <h2>当前计数：{{counter}}</h2>

      <!-- 2.表达式 -->
      <h2>计数双倍：{{counter*2}}</h2>
      <h2>展示的信息:{{info.split(" ")}}</h2>

      <!-- 3.三元表达式 -->
      <h2>{{age>=18?"成年人" : "未成年人"}}</h2>

      <!-- 4.调用methods中函数 -->
      <h2>{{formatDate(time)}}</h2>
</div>

<div id="app">
      <!-- 1.绑定img的src属性 -->
      <button @click="switchImage">切换图片</button>
      <img v-bind:src="showImgUrl" alt="" />
      <!--语法糖 v-bind: = :  -->
      <!-- 2.绑定a的href属性 -->
      <a v-bind:href="href" rel="external nofollow" >百度一下</a>
    </div>

<h2 :class="classes">Hello World</h2>

<button :class="isActive ? 'active':''" @click="btnClick">
我是按钮
</button>

<button :class="{active:isActive}" @click="btnclick">我是按钮</button>

<button class="abc cba" :class="getDynamicClasses" @click="btnClick">
我是按钮
</button>

<h2 style="color: aqua; font-size: 30px">hhh</h2>

<h2 v-bind:style="{color:fontColor,fontSize:fontSize}">hhhh</h2>

<h2 :style="objStyle">hhhhh</h2>

<div id="app">
      <h2 :[name]="aaaa">Hello World</h2>
    </div>
    <script src="../lib/vue.js"></script>
    <script>
      const app = Vue.createApp({
        data: function () {
          return {
            name: "class",
          };
        },
      });
      app.mount("#app");

<div id="app">
      <h2 :name="name" :age="age" :height="height">Hello world</h2>
      <--直接绑定一个对象，一步到位-->
      <h2 v-bind="infos"></h2>
    </div>

    <script src="../lib/vue.js"></script>
    <script>
      const app = Vue.createApp({
        data: function () {
          return {
            infos: { name: "kk", age: 18, height: 1.7 },
            name: "kk",
            age: 18,
            height: 1.7,
          };
        },
      });
      app.mount("#app");