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HarmonyOS
在Vue中定义全局指令v-color出错了，错误内容：[Vue warn]: Failed to resolve directive: color
(found in <Anonymous>)
不知道怎么回事？
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<script src="https://cdn.jsdelivr.net/npm/vue@2.6.6/dist/vue.js"></script>
<body>
<div id="app">
<h2 v-color>{{msg}}</h2>
</div>
<script>
var vm=new Vue({
el:"#app",
data:{
msg:'3333ff'
},
})
Vue.directive('color',{
bind:function(el) {
el.style.color='red'
}
})
</script>
</body>
</html>v-color出错了，求大神帮忙看看，谢过啦~~
java
html5