vue如何监听键盘事件？

Answer 1

1. @keyup. 方法

   <template>
     <input ref="myInput" type="text" value="hello world" autofocus @keyup.enter="handleKey">
   </template>
   
   <script>
     export default {
       methods: {
         handleKey(e) {
           console.log(e)
         }
       }
     }
   </script>

2. addEventListener

   <script>
     export default {
       mounted() {
         document.addEventListener('keyup', this.handleKey)
       },
       beforeDestroy() {
         document.removeEventListener('keyup', this.handleKey)
       },
       methods: {
         handleKey(e) {
           console.log(e)
         }
       }
     }
   </script>