How to use vue.js to realize $refs and $emit parent-child component interaction

This article mainly introduces the interaction method between vue.js $refs and $emit parent-child components. Now I share it with you and give it a reference.

This article introduces the interaction method between vue.js $refs and $emit parent-child components. I would like to share it with you. Without further ado, just look at the code:

父调子 $refs （把父组件的数据传给子组件） 

  /*Hello.vue :*/  

子调父 $emit (把子组件的数据传给父组件) //ps:App.vue 父组件 //Hello.vue 子组件      

The above is what I compiled for you. I hope it will be helpful to everyone in the future.

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