vue禁用键盘上某个按键

 mounted(){

     this.showkey()

  },

  created: function() {

    document.onkeydown = function() {

        let key = window.event.keyCode;

        if(key == 122) return false                          //禁用f11按键

    };

},

keyCode                                                    实际键值

48到57                                                           0到9

65到90                                                         a到z(A到Z)

112到135                                                        F1到F24

8                                                               BackSpace(退格)

9                                                                          Tab

13                                                                   Enter(回车)

20                                                              Caps_Lock(大写锁定)

32                                                                      Space(空格键)

37                                                                        Left(左箭头)

38                                                                         Up(上箭头)

39                                                                         Right(右箭头)

40                                                                         Down(下箭头)

45                                                                             Insert(插入)

46                                                                             Delete(删除)

27                                                                                     ESC

在Vue中,已经为常用的按键设置了别名,这样我们就无需再去匹配keyCode,直接使用别名就能监听按键的事件。

别名 实际键值

.delete                                                             delete(删除)/BackSpace(退格)

.tab                                                                                             Tab

.enter                                                                                 Enter(回车)

.esc                                                                                    Esc(退出)

.space                                                                             Space(空格键)

.left                                                                                 Left(左箭头)

.up                                                                                 Up(上箭头)

.right                                                                                 Right(右箭头)

.down                                                                         Down(下箭头)

.ctrl                                                                                         Ctrl

.alt                                                                                         Alt

.shift                                                                                         Shift

.meta                                                     (window系统下是window键,mac下是command键)

另外,Vue中还支持组合写法:

组合写法按键组合

@keyup.alt.67=”function”Alt + C

@click.ctrl=”function”Ctrl + Click

created: function() {

    var _this = this;

    document.onkeydown = function(e) {

        let key = window.event.keyCode;

        if(key == 119){

          console.log('监听F8按键')

        }else if(key == 120){

          console.log('监听F9按键')

        }else if(key == 121){

          console.log('监听F10按键')

        }};}

禁用键盘事件

//在methods中

showkey() {

    document.onkeydown = function() {

        console.log(window.event.returnValue);

        if (window.event.keyCode == 116) {

            window.event.returnValue = false;

        }

        console.log(window.event.returnValue);

    };},

//mounted中调用

mounted () {

    this.showkey()

}

©著作权归作者所有,转载或内容合作请联系作者
平台声明:文章内容(如有图片或视频亦包括在内)由作者上传并发布,文章内容仅代表作者本人观点,简书系信息发布平台,仅提供信息存储服务。

推荐阅读更多精彩内容