vue v-on 艾特@-Toy模板网

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vue v-on

内联代码：

<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>

<body>

  <div id="app">

    <button v-on:click="count++">+</button>
    <div>{{ count }}</div>

    <button @click="count--">-</button>
  </div>

  <script src="https://cdn.bootcdn.net/ajax/libs/vue/2.7.14/vue.js"></script>
  <script>

    const app = new Vue({
      el: '#app',
      data: {
        count: 100,
      }
    })
  </script>

</body>

</html>

运行效果
vue v-on 艾特@,web_html,javascript

methods方法

<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>

<body>
  <script src="https://cdn.bootcdn.net/ajax/libs/vue/2.7.14/vue.js"></script>

  <div id="app">
    <button @click="fn"> 切换显示 </button>
    <p v-show='isShow'> Hello </p>

  </div>


  <script>

    const app = new Vue({
      el: '#app',

      data: {
        isShow: true,
      },
      methods: {
        fn() {
          this.isShow = !this.isShow;
        },
      }
    })
  </script>

</body>

</html>

vue v-on 艾特@,web_html,javascript

带参数

<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>

<body>

  <div id="app">
    <h3>小黑自动售货机</h3>
    <button @click="buy(5)">可乐5元</button>
    <button @click="buy(10)">咖啡10元</button>
    <button @click="buy(8)">牛奶8元</button>
    <p>银行卡余额：{{ money }}元</p>

  </div>
  <script src="https://cdn.bootcdn.net/ajax/libs/vue/2.7.14/vue.js"></script>
  <script>

    const app = new Vue({
      el: '#app',
      data: {
        money: 100,
      },
      methods: {
        buy(price) {
          this.money -= price
        },
      }
    })
  </script>

</body>

</html>