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Vue 组件通信之 Bus
source link: https://juejin.im/post/5a4353766fb9a044fb080927
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关于组件通信我相信小伙伴们肯定也都很熟悉，就不多说了，对组件通信还不熟悉的小伙伴移步这里。 在vue2.0中 $dispatch 和 $broadcast 已经被弃用。官方文档中给出的解释是： 因为基于组件树结构的事件流方式实在是让人难以理解，并且在组件结构
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