我有一个组件，如何 Select 其中一个元素？
我正在try 获取此组件模板中的输入.
可能有多个组件，所以querySelector必须只解析组件的当前实例.
Vue.component('somecomponent', {
template: '#somecomponent',
props: [...],
...
created: function() {
somevariablehere.querySelector('input').focus();
}
});
根据您试图访问的内容，有几个选项:
您可以访问Vue的子组件.js组件和this.$children
You can label specific DOM elements inside your template using ref="uniqueName" and refer to these later via this.$refs.uniqueName
(but remember that you won't be able to refer to these until the component/app has finished mounting and performed an initial render)
If you're unable to label your elements, you can query the DOM for child elements using a CSS selector via this.$el.querySelector('.myClass > .childElement')
(as above, the component/app needs to have finished mounting)
您还可以在组件内部进行简单的console.log(this)次探索，它将向您展示Vue组件实例的所有属性.