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vue的一个组件的数据改变后，兄弟组件监听这个数据改变了则做一些其它的操作，这个怎么监听好呢？

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vue的一个组件的数据改变后，兄弟组件监听这个数据改变了则做一些其它的操作，这个怎么监听好呢？

是用事件总线来监听吗？用vuex的话好监听吗？求教


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如果这些组件之间是强耦合关系，那么直接获取被监听的组件实例调用$watch即可。

反之就是你说的new Vue、vuex、Vue.observable之类的方法


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