Sortable: why i can not use the key 'ctrl'

[kaermomo]

mounted: function() {  
    Sortable.mount(new MultiDrag(), new Swap());
    var _this = this;
    var $ss = document.getElementById('sort')

    new Sortable($ss, { 
      group: 'shared',
      multiDrag: true,
      multiDragKey :'ctrl',
      selectedClass: "selected", 
      animation: 150,
      onEnd:function(event){ }
    }
}

上面是我的代码 ，
当我首次打开画面后，我不可以直接只用‘ctrl'多选
只有当我在vscode上面更改代码后 保存、 更新画面 才可以使用。
这并不是我想要的效果，我想要它随时可以ctrl 多选，而不是手动保存代码更新画面才行。

拜托了，希望自己可以得到您的回复。

[owen-m1]

English please

[kaermomo]

emm..i am so sorry.. i found the ' multiDragKey :'ctrl',' is not useful,When I open the screen for the first time(just Compiled), I can’t use ‘ctrl’ to select, but if use vscode to compile and update the code online， the ctrl attribute can be used on the web page。What should i pay attention to，Is the way I use it wrong?Why is it sometimes easy to use but not easy to use? I don't want to manually save the code to update the screen.Please forgive me who is not good at English.Looking forward to your reply.

[owen-m1]

@kaermomo I'm not sure why. Maybe after the code compiles you need to refresh and clear cache.
Try doing this: https://stackoverflow.com/a/7000899/6088312