Vue相关指令的使用

╰半夏微凉° 2022-10-14 00:43 157阅读 0赞

<template>
      <div id="app">
        <img alt="Vue logo" src="./assets/logo.png">
        
        <h3 v-cloak>{
       {msg}}</h3>
        
        <p v-text="msg1"></p>
        <p v-html="msg2"></p>
        <p v-pre>{
       {msg3}}</p>
        
        <h3 v-once>{
       {msg4}}</h3>
        
        <input type="text" v-model="msg5" />
        <h3>{
       {msg5}}</h3>
        
        <input type="text" v-bind:value="msg6" v-on:input="msg6=$event.target.value" />
        <h3>{
       {msg6}}</h3>
        
        <input type="button" value="点击" @click="add" />
        <h3>{
       {num}}</h3>
        
        <input type="button" value="参数传递1" v-on:click="handle1" />
        <input type="button" value="参数传递2" v-on:click="handle2(12,$event)" />
        
        <div v-on:click="handle3">
          <input type="button" value="点击1" v-on:click.stop="handle4" />
        </div>
        <a href="https://www.baidu.com" v-on:click.prevent="handle5">百度</a>
        
        <input type="text" v-on:keyup.enter="handle6" />
        <input type="text" v-on:keyup.delete="handle7" />
        
        <input type="text" v-on:keyup.f1="handle8" />
        
        <a v-bind:href="href">点我跳转{
       {href}}</a>
        <input type="button" value="切换超链接" v-on:click="handle9" />
        
        <div :class="{div1: isdiv1, div2: isdiv2}"></div>
        <input type="button" value="切换" @click="handle10" />
        <div v-bind:style="objstyle"></div>
        
        <div v-if="score>=90">优秀</div>
        <div v-else-if="score>=80&&score<90">良好</div>
        <div v-else-if="score>=60&&score<80">一般</div>
        <div v-else>差</div>
        <div v-show="flag">天天</div>
        <input type="button" value="切换" @click="handle11" />
        
        <ol>
          <li :key="index" v-for="(item,index) in list">
            {
       {index}}----{
       {item}}
          </li>
        </ol>
        <hr>
        <ul>
          <li :key="index" v-for="(item,index) in maps">
            {
       {index}}----{
       {item.name}}----{
       {item.age}}
          </li>
        </ul>
        
        <div v-if="value=='value1'" v-for="(value, key, index) in obj">
          {
       {value+'---'+key+'---'+index}}
        </div>
    
      </div>
    </template>
    
    <script>
    
    export default {
      name: 'App',
      data() {
        return {
          msg: 'Hello Vue',
          msg1: 'v-text',
          msg2: 'v-html',
          msg3: 'v-pre',
          msg4: 'v-once',
          msg5: '',
          msg6: '',
          num: 0,
          href: 'https://www.baidu.com',
          isdiv1: false,
          isdiv2: false,
          objstyle: {
            width: '300px',
            height: '300px',
            border: 'red 1px solid'
          },
          score: 10,
          flag: false,
          list: ['aa','bb','cc'],
          maps: [
              {
                name: 'tom',
                age: 23
              },
              {
                name: 'jerry',
                age: 24
              },
              {
                name: 'kk',
                age: 35
              }
          ],
          obj: {
            key1: 'value1',
            key2: 'value2',
            key3: 'value3'
          }
        }
      },
      methods: {
        add: function() {
          this.num++
        },
        handle1: function(event) {
          console.log(event.target.type)
        },
        handle2(a, event) {
          console.log(a)
          console.log(event.target.value)
        },
        handle3() {
          console.log('冒泡了')
        },
        handle4() {
    
        },
        handle5() {
    
        },
        handle6() {
          console.log('enter')
        },
        handle7() {
          console.log('delete')
        },
        handle8(event) {
          console.log(event.keyCode)
        },
        handle9() {
          this.href = 'https://www.taobao.com'
        },
        handle10() {
          this.isdiv1 = !this.isdiv1
          this.isdiv2 = !this.isdiv2
        },
        handle11() {
          this.flag = !this.flag
        }
      }
    }
    </script>
    
    <style>
      #app {
        color: red;
        text-align: center;
      }
      [v-cloak] {
        display: none;
      }
      .div1 {
        height: 100px;
        width: 100px;
        border: #FF0000 1px solid;
      }
      .div2 {
        background-color: #42B983;
      }
    </style>