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Vue2键盘事件

2024-10-07 18:13:01   219人阅读

这两天学习了Vue.js 感觉组件这个地方知识点挺多的，而且很重要，所以，今天添加一点小笔记,学习一下Vue键盘事件
键盘事件

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<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <title></title>
  <script src=http://www.mamicode.com/"../js/Vue.js" charset="utf-8"></script>
  <script type="text/javascript">
    window.onload = function () {
      var vm = new Vue({
        el: ‘#box‘,
        data: {},
        methods: {
          show: function (ev) {
            alert(ev.keyCode)
          }
        }
      });
    }
  </script>
</head>
<body>
<div id="box">
  <input type="text" @keydown="show($event)">
</div>
</body>
</html>

keyCode

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<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <title></title>
  <script src=http://www.mamicode.com/"../js/Vue.js" charset="utf-8"></script>
  <script type="text/javascript">
    window.onload = function () {
      var vm = new Vue({
        el: ‘#box‘,
        data: {},
        methods: {
          show: function (ev) {
            if(ev.keyCode==13){
              alert(‘你按了回车键！‘)
            }
          }
        }
      });
    }
  </script>
</head>
<body>
<div id="box">
  <input type="text" @keyup="show($event)">
</div>
</body>
</html>

keyUp

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<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <title></title>
  <script src=http://www.mamicode.com/"../js/Vue.js" charset="utf-8"></script>
  <script type="text/javascript">
    window.onload = function () {
      var vm = new Vue({
        el: ‘#box‘,
        data: {},
        methods: {
          show: function (ev) {
            alert(ev.keyCode)
          }
        }
      });
    }
  </script>
</head>
<body>
<div id="box">
  <input type="text" @keyup="show($event)">
</div>
</body>
</html>

键盘事件——简写方式

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<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <title></title>
  <script src=http://www.mamicode.com/"../js/Vue.js" charset="utf-8"></script>
  <script type="text/javascript">
    window.onload = function () {
      var vm = new Vue({
        el: ‘#box‘,
        data: {},
        methods: {
          show: function () {
            alert(‘你按了回车！‘);
          },
          show2: function () {
            alert(‘你按了回车！‘);
          },
          show3: function () {
            alert(‘你按了上键！‘);
          },
          show4: function () {
            alert(‘你按了下键！‘);
          },
          show5: function () {
            alert(‘你按了左键！‘);
          },
          show6: function () {
            alert(‘你按了右键！‘);
          }
        }
      });
    }
  </script>
</head>
<body>
<div id="box">
  <input type="text" @keyup.13="show()">
  <hr>
  <input type="text" @keyup.enter="show2()">
  <hr>
  <input type="text" @keyup.up="show3()">
  <hr>
  <input type="text" @keyup.down="show4()">
  <hr>
  <input type="text" @keyup.left="show5()">
  <hr>
  <input type="text" @keyup.right="show6()">
  <hr>
</div>
</body>
</html>

Vue2键盘事件


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