Vue3中 子组件通过emit抛出事件 出现如下警告但不影响使用：
Extraneous non-emits event listeners (otherev) were passed to component but could not be automatically inherited because component renders fragment or text root nodes. If the listener is intended to be a component custom event listener only, declare it using the "emits" option.
解决方法，需要在emits中定义抛出的事件名
案例
<template>
<input type="text" :value="name" @input="$emit('update:name', $event.target.value)">
<input type="text" :value="title" @input="$emit('update:title', $event.target.value)">
<input type="text" @input="$emit('otherev', $event.target.value)">
</template>
<script>
export default {
props: {
name: String,
title: String
},
// 定义抛出的事件名称
emits: ["update:name", 'update:title', 'otherev']
}
</script>
